204097928 has 8 divisors (see below), whose sum is σ = 382683630. Its totient is φ = 102048960.

The previous prime is 204097897. The next prime is 204097931. The reversal of 204097928 is 829790402.

It can be written as a sum of positive squares in only one way, i.e., 179077924 + 25020004 = 13382^2 + 5002^2 .

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, 12756113 + ... + 12756128.

Almost surely, 2^204097928 is an apocalyptic number.

It is an amenable number.

204097928 is a deficient number, since it is larger than the sum of its proper divisors (178585702).

204097928 is a wasteful number, since it uses less digits than its factorization.

204097928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25512247 (or 25512243 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 204097928 is about 14286.2846114726. The cubic root of 204097928 is about 588.7707125600.

The spelling of 204097928 in words is "two hundred four million, ninety-seven thousand, nine hundred twenty-eight".