204789924 has 24 divisors (see below), whose sum is σ = 530937120. Its totient is φ = 68263272.

The previous prime is 204789919. The next prime is 204789941. The reversal of 204789924 is 429987402.

It is a self number, because there is not a number n which added to its sum of digits gives 204789924.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947994 + ... + 948209.

It is an arithmetic number, because the mean of its divisors is an integer number (22122380).

Almost surely, 2^204789924 is an apocalyptic number.

It is an amenable number.

204789924 is an abundant number, since it is smaller than the sum of its proper divisors (326147196).

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

204789924 is a wasteful number, since it uses less digits than its factorization.

204789924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896216 (or 1896208 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 204789924 is about 14310.4830107163. The cubic root of 204789924 is about 589.4353728788.

The spelling of 204789924 in words is "two hundred four million, seven hundred eighty-nine thousand, nine hundred twenty-four".