204388812 has 24 divisors (see below), whose sum is σ = 529897200. Its totient is φ = 68129568.

The previous prime is 204388801. The next prime is 204388819. The reversal of 204388812 is 218883402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (204388819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946137 + ... + 946352.

It is an arithmetic number, because the mean of its divisors is an integer number (22079050).

Almost surely, 2^204388812 is an apocalyptic number.

It is an amenable number.

204388812 is an abundant number, since it is smaller than the sum of its proper divisors (325508388).

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

204388812 is a wasteful number, since it uses less digits than its factorization.

204388812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892502 (or 1892494 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 204388812 is about 14296.4615202504. The cubic root of 204388812 is about 589.0502886164.

The spelling of 204388812 in words is "two hundred four million, three hundred eighty-eight thousand, eight hundred twelve".