204538 has 8 divisors (see below), whose sum is σ = 316800. Its totient is φ = 98940.

The previous prime is 204521. The next prime is 204557. The reversal of 204538 is 835402.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1588 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (39600).

2²⁰⁴⁵³⁸ is an apocalyptic number.

204538 is a deficient number, since it is larger than the sum of its proper divisors (112262).

204538 is a wasteful number, since it uses less digits than its factorization.

204538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 204538 is about 452.2587754815. The cubic root of 204538 is about 58.9193574120.

The spelling of 204538 in words is "two hundred four thousand, five hundred thirty-eight".