204042504 has 32 divisors (see below), whose sum is σ = 511200000. Its totient is φ = 67868352.

The previous prime is 204042497. The next prime is 204042533. The reversal of 204042504 is 405240402.

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, 2622 + ... + 20370.

It is an arithmetic number, because the mean of its divisors is an integer number (15975000).

Almost surely, 2^204042504 is an apocalyptic number.

204042504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204042504 is an abundant number, since it is smaller than the sum of its proper divisors (307157496).

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

204042504 is a wasteful number, since it uses less digits than its factorization.

204042504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18237 (or 18233 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 204042504 is about 14284.3447172070. The cubic root of 204042504 is about 588.7174130115.

Adding to 204042504 its reverse (405240402), we get a palindrome (609282906).

It can be divided in two parts, 2040 and 42504, that added together give a palindrome (44544).

The spelling of 204042504 in words is "two hundred four million, forty-two thousand, five hundred four".