205104904 has 16 divisors (see below), whose sum is σ = 384768000. Its totient is φ = 102500112.

The previous prime is 205104899. The next prime is 205104917. The reversal of 205104904 is 409401502.

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, 13849 + ... + 24535.

It is an arithmetic number, because the mean of its divisors is an integer number (24048000).

Almost surely, 2^205104904 is an apocalyptic number.

It is an amenable number.

205104904 is a deficient number, since it is larger than the sum of its proper divisors (179663096).

205104904 is a wasteful number, since it uses less digits than its factorization.

205104904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092 (or 13088 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 205104904 is about 14321.4840013177. The cubic root of 205104904 is about 589.7374145117.

The spelling of 205104904 in words is "two hundred five million, one hundred four thousand, nine hundred four".