204555028 has 24 divisors (see below), whose sum is σ = 360905832. Its totient is φ = 101443584.

The previous prime is 204555023. The next prime is 204555049. The reversal of 204555028 is 820555402.

204555028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15272464 + 189282564 = 3908^2 + 13758^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204555023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447376 + ... + 447832.

It is an arithmetic number, because the mean of its divisors is an integer number (15037743).

Almost surely, 2^204555028 is an apocalyptic number.

It is an amenable number.

204555028 is a deficient number, since it is larger than the sum of its proper divisors (156350804).

204555028 is a wasteful number, since it uses less digits than its factorization.

204555028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 204555028 is about 14302.2735255623. The cubic root of 204555028 is about 589.2099239908.

The spelling of 204555028 in words is "two hundred four million, five hundred fifty-five thousand, twenty-eight".