204402204 has 30 divisors (see below), whose sum is σ = 534348584. Its totient is φ = 68133960.

The previous prime is 204402157. The next prime is 204402257. The reversal of 204402204 is 402204402.

204402204 is a `hidden beast` number, since 2 + 0 + 440 + 220 + 4 = 666.

It is a super-2 number, since 2×204402204² = 83560522000115232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 315112 + ... + 315759.

Almost surely, 2^204402204 is an apocalyptic number.

It is an amenable number.

204402204 is an abundant number, since it is smaller than the sum of its proper divisors (329946380).

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

204402204 is a wasteful number, since it uses less digits than its factorization.

204402204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630887 (or 630876 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 204402204 is about 14296.9298802225. The cubic root of 204402204 is about 589.0631536212.

Adding to 204402204 its reverse (402204402), we get a palindrome (606606606).

The spelling of 204402204 in words is "two hundred four million, four hundred two thousand, two hundred four".