220952728 has 16 divisors (see below), whose sum is σ = 415030680. Its totient is φ = 110277888.

The previous prime is 220952681. The next prime is 220952737. The reversal of 220952728 is 827259022.

220952728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20025 + ... + 29032.

Almost surely, 2^220952728 is an apocalyptic number.

It is an amenable number.

220952728 is a deficient number, since it is larger than the sum of its proper divisors (194077952).

220952728 is a wasteful number, since it uses less digits than its factorization.

220952728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49626 (or 49622 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 220952728 is about 14864.4787328719. The cubic root of 220952728 is about 604.5512488583.

The spelling of 220952728 in words is "two hundred twenty million, nine hundred fifty-two thousand, seven hundred twenty-eight".