204528939 has 16 divisors (see below), whose sum is σ = 289908480. Its totient is φ = 127893600.

The previous prime is 204528931. The next prime is 204528959. The reversal of 204528939 is 939825402.

204528939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204528939 - 2³ = 204528931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204528939.

It is not an unprimeable number, because it can be changed into a prime (204528931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12007 + ... + 23520.

It is an arithmetic number, because the mean of its divisors is an integer number (18119280).

Almost surely, 2^204528939 is an apocalyptic number.

204528939 is a deficient number, since it is larger than the sum of its proper divisors (85379541).

204528939 is a wasteful number, since it uses less digits than its factorization.

204528939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35650.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 204528939 is about 14301.3614386883. The cubic root of 204528939 is about 589.1848735982.

The spelling of 204528939 in words is "two hundred four million, five hundred twenty-eight thousand, nine hundred thirty-nine".