204023656 has 8 divisors (see below), whose sum is σ = 382544370. Its totient is φ = 102011824.

The previous prime is 204023629. The next prime is 204023669. The reversal of 204023656 is 656320402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 157101156 + 46922500 = 12534^2 + 6850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751471 + ... + 12751486.

Almost surely, 2^204023656 is an apocalyptic number.

It is an amenable number.

204023656 is a deficient number, since it is larger than the sum of its proper divisors (178520714).

204023656 is a wasteful number, since it uses less digits than its factorization.

204023656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25502963 (or 25502959 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 204023656 is about 14283.6849587213. The cubic root of 204023656 is about 588.6992852730.

The spelling of 204023656 in words is "two hundred four million, twenty-three thousand, six hundred fifty-six".