204528 has 20 divisors (see below), whose sum is σ = 528488. Its totient is φ = 68160.

The previous prime is 204521. The next prime is 204557. The reversal of 204528 is 825402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204521) by changing a digit.

204528 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083 + ... + 2178.

2²⁰⁴⁵²⁸ is an apocalyptic number.

It is an amenable number.

204528 is an abundant number, since it is smaller than the sum of its proper divisors (323960).

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

204528 is a wasteful number, since it uses less digits than its factorization.

204528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4266 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 204528 is about 452.2477197289. The cubic root of 204528 is about 58.9183971940.

The spelling of 204528 in words is "two hundred four thousand, five hundred twenty-eight".