Next
1. Grade Calculator2. Vowel or Consonant3. Character Classification (Digit / Alpha / Special)4. Check Eligibility to Vote5. Check Divisible by 5 and 116. Check Armstrong Number7. Check Perfect Square8. Triangle Type Check9. Check Strong Number10. Check Perfect Number11. Check Automorphic Number12. Check Harshad Number13. Check Abundant Number14. Check Friendly Pair15. Compare Floating Numbers16. Menu-Driven Calculator17. Bill Discount System18. Login Authentication19. Validate Password Strength20. Validate Email Format

Check Harshad Number in Python

Check whether a number is a Harshad (Niven) number (divisible by sum of its digits).

BeginnerConditional ProgramsExample 12 of 20
check-harshad-number.py
1# Program to check Harshad (Niven) number
2

3num = int(input("Enter an integer: "))
4

5digit_sum = sum(int(d) for d in str(num))
6

7if digit_sum != 0 and num % digit_sum == 0:
8    print(num, "is a Harshad number")
9else:
10    print(num, "is not a Harshad number")

Output

Enter an integer: 18
18 is a Harshad number

What's going on

A Harshad number is divisible by the sum of its digits.

We compute digit sum using a comprehension and check divisibility with modulo.

After this program

If the idea is still fuzzy, read Day 8: Conditional Statements in the Python course. For a short check, try the Python quiz (300 questions). Stay with all 20 conditional programs, or see every topic on Python exercises.

PreviousCheck Automorphic NumberNextCheck Abundant Number