204940900 has 18 divisors (see below), whose sum is σ = 444721970. Its totient is φ = 81976320.

The previous prime is 204940889. The next prime is 204940913. The reversal of 204940900 is 9049402.

204940900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 21013056 + 183927844 = 4584^2 + 13562^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1024605 + ... + 1024804.

Almost surely, 2^204940900 is an apocalyptic number.

204940900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204940900 is an abundant number, since it is smaller than the sum of its proper divisors (239781070).

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

204940900 is a wasteful number, since it uses less digits than its factorization.

204940900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049423 (or 2049416 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 204940900 is about 14315.7570529819. The cubic root of 204940900 is about 589.5801858875.

The spelling of 204940900 in words is "two hundred four million, nine hundred forty thousand, nine hundred".