3099. Harshad Number - LeetCode

class Solution:
    def sumOfTheDigitsOfHarshadNumber(self, x: int) -> int:
        s = 0
        div = x
        while div:
            div, mod = divmod(div, 10)
            s += mod

        harshad = x % s == 0
        if harshad:
            return s

        return -1