227638656 has 96 divisors (see below), whose sum is σ = 748659600. Its totient is φ = 65037312.

The previous prime is 227638643. The next prime is 227638667. The reversal of 227638656 is 656836722.

It is a happy number.

227638656 is a `hidden beast` number, since 2 + 2 + 7 + 638 + 6 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 11 ways as a sum of consecutive naturals, for example, 6051 + ... + 22178.

Almost surely, 2^227638656 is an apocalyptic number.

It is an amenable number.

227638656 is an abundant number, since it is smaller than the sum of its proper divisors (521020944).

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

227638656 is a wasteful number, since it uses less digits than its factorization.

227638656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28256 (or 28241 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 227638656 is about 15087.6988305043. The cubic root of 227638656 is about 610.5885710428.

The spelling of 227638656 in words is "two hundred twenty-seven million, six hundred thirty-eight thousand, six hundred fifty-six".