reverse number in C

#include<stdio.h>

int main(void){
    int num;
    printf("What number do you want to reversed? ");
    scanf("%i", &num);

    int final_num = 0;

    while (num != 0){
        int digit = num % 10;
        final_num *= 10;
        final_num += digit;

        num /= 10;
    }

    printf("The reversed number is %i.", final_num);

    return 0;
}