204681672 has 48 divisors (see below), whose sum is σ = 596990940. Its totient is φ = 62978688.

The previous prime is 204681643. The next prime is 204681727. The reversal of 204681672 is 276186402.

It can be written as a sum of positive squares in 2 ways, for example, as 202037796 + 2643876 = 14214^2 + 1626^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108403 + ... + 110274.

Almost surely, 2^204681672 is an apocalyptic number.

It is an amenable number.

204681672 is an abundant number, since it is smaller than the sum of its proper divisors (392309268).

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

204681672 is a wasteful number, since it uses less digits than its factorization.

204681672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218702 (or 218695 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 204681672 is about 14306.7002484850. The cubic root of 204681672 is about 589.3314960165.

The spelling of 204681672 in words is "two hundred four million, six hundred eighty-one thousand, six hundred seventy-two".