204368 has 20 divisors (see below), whose sum is σ = 405108. Its totient is φ = 99840.

The previous prime is 204367. The next prime is 204371. The reversal of 204368 is 863402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 53824 = 388^2 + 232^2 .

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728 + ... + 968.

2²⁰⁴³⁶⁸ is an apocalyptic number.

It is an amenable number.

204368 is a deficient number, since it is larger than the sum of its proper divisors (200740).

204368 is a wasteful number, since it uses less digits than its factorization.

204368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 204368 is about 452.0707909166. The cubic root of 204368 is about 58.9030294484.

The spelling of 204368 in words is "two hundred four thousand, three hundred sixty-eight".