204564404 has 12 divisors (see below), whose sum is σ = 390532128. Its totient is φ = 92983800.

The previous prime is 204564403. The next prime is 204564413. The reversal of 204564404 is 404465402.

It is a happy number.

204564404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204564403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2324552 + ... + 2324639.

It is an arithmetic number, because the mean of its divisors is an integer number (32544344).

Almost surely, 2^204564404 is an apocalyptic number.

It is an amenable number.

204564404 is a deficient number, since it is larger than the sum of its proper divisors (185967724).

204564404 is a wasteful number, since it uses less digits than its factorization.

204564404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649206 (or 4649204 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 204564404 is about 14302.6013018611. The cubic root of 204564404 is about 589.2189262104.

The spelling of 204564404 in words is "two hundred four million, five hundred sixty-four thousand, four hundred four".