220628750 has 20 divisors (see below), whose sum is σ = 413548872. Its totient is φ = 88251000.

The previous prime is 220628701. The next prime is 220628761. The reversal of 220628750 is 57826022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 87002 + ... + 89501.

Almost surely, 2^220628750 is an apocalyptic number.

220628750 is a deficient number, since it is larger than the sum of its proper divisors (192920122).

220628750 is an equidigital number, since it uses as much as digits as its factorization.

220628750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176525 (or 176510 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 220628750 is about 14853.5770102693. The cubic root of 220628750 is about 604.2556243698.

The spelling of 220628750 in words is "two hundred twenty million, six hundred twenty-eight thousand, seven hundred fifty".