204992 has 14 divisors (see below), whose sum is σ = 406908. Its totient is φ = 102464.

The previous prime is 204983. The next prime is 205019. The reversal of 204992 is 299402.

204992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

204992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1538 + ... + 1665.

2²⁰⁴⁹⁹² is an apocalyptic number.

It is an amenable number.

204992 is a deficient number, since it is larger than the sum of its proper divisors (201916).

204992 is an equidigital number, since it uses as much as digits as its factorization.

204992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215 (or 3205 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 204992 is about 452.7604222986. The cubic root of 204992 is about 58.9629183824.

The spelling of 204992 in words is "two hundred four thousand, nine hundred ninety-two".