204386812 has 12 divisors (see below), whose sum is σ = 408773680. Its totient is φ = 87594336.

The previous prime is 204386789. The next prime is 204386821. The reversal of 204386812 is 218683402.

204386812 is an admirable number.

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, 3649737 + ... + 3649792.

Almost surely, 2^204386812 is an apocalyptic number.

It is an amenable number.

204386812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

204386812 is a wasteful number, since it uses less digits than its factorization.

204386812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7299540 (or 7299538 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 204386812 is about 14296.3915727011. The cubic root of 204386812 is about 589.0483672711.

The spelling of 204386812 in words is "two hundred four million, three hundred eighty-six thousand, eight hundred twelve".