204672128 has 32 divisors (see below), whose sum is σ = 408918000. Its totient is φ = 102041856.

The previous prime is 204672113. The next prime is 204672133. The reversal of 204672128 is 821276402.

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

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 204672094 and 204672103.

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, 46403 + ... + 50621.

Almost surely, 2^204672128 is an apocalyptic number.

It is an amenable number.

204672128 is a deficient number, since it is larger than the sum of its proper divisors (204245872).

204672128 is an equidigital number, since it uses as much as digits as its factorization.

204672128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612 (or 4600 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 204672128 is about 14306.3666945874. The cubic root of 204672128 is about 589.3223359923.

The spelling of 204672128 in words is "two hundred four million, six hundred seventy-two thousand, one hundred twenty-eight".