228470656 has 32 divisors (see below), whose sum is σ = 462886200. Its totient is φ = 112295424.

The previous prime is 228470629. The next prime is 228470663. The reversal of 228470656 is 656074822.

228470656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

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, 7575 + ... + 22678.

Almost surely, 2^228470656 is an apocalyptic number.

It is an amenable number.

228470656 is an abundant number, since it is smaller than the sum of its proper divisors (234415544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228470656 is an equidigital number, since it uses as much as digits as its factorization.

228470656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30326 (or 30314 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 228470656 is about 15115.2458134163. The cubic root of 228470656 is about 611.3315497660.

The spelling of 228470656 in words is "two hundred twenty-eight million, four hundred seventy thousand, six hundred fifty-six".