204504988 has 12 divisors (see below), whose sum is σ = 357995232. Its totient is φ = 102220640.

The previous prime is 204504967. The next prime is 204504991. The reversal of 204504988 is 889405402.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 204504988.

It is a congruent number.

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, 12093 + ... + 23563.

It is an arithmetic number, because the mean of its divisors is an integer number (29832936).

Almost surely, 2^204504988 is an apocalyptic number.

It is an amenable number.

204504988 is a deficient number, since it is larger than the sum of its proper divisors (153490244).

204504988 is a wasteful number, since it uses less digits than its factorization.

204504988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932 (or 15930 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 204504988 is about 14300.5240463418. The cubic root of 204504988 is about 589.1618742159.

The spelling of 204504988 in words is "two hundred four million, five hundred four thousand, nine hundred eighty-eight".