204808 has 8 divisors (see below), whose sum is σ = 384030. Its totient is φ = 102400.

The previous prime is 204803. The next prime is 204821. The reversal of 204808 is 808402.

It can be written as a sum of positive squares in only one way, i.e., 103684 + 101124 = 322^2 + 318^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (204803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12793 + ... + 12808.

2²⁰⁴⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

204808 is a deficient number, since it is larger than the sum of its proper divisors (179222).

204808 is a wasteful number, since it uses less digits than its factorization.

204808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25607 (or 25603 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 204808 is about 452.5571787078. The cubic root of 204808 is about 58.9452714748.

The spelling of 204808 in words is "two hundred four thousand, eight hundred eight".