4,115,618 rounded to the nearest million, and hundred thousand

4,115,618 rounded to the nearest million is 4,000,000.

4,115,618 rounded to the nearest hundred thousand is 4, (100,000)

Step-by-step explanation:

If the number is less than any number that ends with 5, then you move backward. So, for example, 149 would be less than 150, so it would be rounded to 100. If the number is 151, then it will be rounded up to 200.