204690600 has 72 divisors (see below), whose sum is σ = 687425310. Its totient is φ = 54583680.

The previous prime is 204690587. The next prime is 204690631. The reversal of 204690600 is 6096402.

It can be written as a sum of positive squares in 3 ways, for example, as 178863876 + 25826724 = 13374^2 + 5082^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55059 + ... + 58658.

Almost surely, 2^204690600 is an apocalyptic number.

204690600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204690600 is an abundant number, since it is smaller than the sum of its proper divisors (482734710).

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

204690600 is a wasteful number, since it uses less digits than its factorization.

204690600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113739 (or 113727 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 204690600 is about 14307.0122667173. The cubic root of 204690600 is about 589.3400645660.

The spelling of 204690600 in words is "two hundred four million, six hundred ninety thousand, six hundred".