204251128 has 16 divisors (see below), whose sum is σ = 384958080. Its totient is φ = 101595648.

The previous prime is 204251111. The next prime is 204251129. The reversal of 204251128 is 821152402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204251129) 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, 64600 + ... + 67687.

It is an arithmetic number, because the mean of its divisors is an integer number (24059880).

Almost surely, 2^204251128 is an apocalyptic number.

It is an amenable number.

204251128 is a deficient number, since it is larger than the sum of its proper divisors (180706952).

204251128 is a wasteful number, since it uses less digits than its factorization.

204251128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132486 (or 132482 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 204251128 is about 14291.6453916265. The cubic root of 204251128 is about 588.9179900865.

The spelling of 204251128 in words is "two hundred four million, two hundred fifty-one thousand, one hundred twenty-eight".