204688 has 20 divisors (see below), whose sum is σ = 433008. Its totient is φ = 92960.

The previous prime is 204679. The next prime is 204707. The reversal of 204688 is 886402.

204688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 406 + ... + 757.

2²⁰⁴⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

204688 is an abundant number, since it is smaller than the sum of its proper divisors (228320).

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

204688 is a wasteful number, since it uses less digits than its factorization.

204688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 204688 is about 452.4245793500. The cubic root of 204688 is about 58.9337569270.

The spelling of 204688 in words is "two hundred four thousand, six hundred eighty-eight".