28810250 has 64 divisors (see below), whose sum is σ = 62629632. Its totient is φ = 9720000.

The previous prime is 28810247. The next prime is 28810267. The reversal of 28810250 is 5201882.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176669 + ... + 176831.

It is an arithmetic number, because the mean of its divisors is an integer number (978588).

Almost surely, 2^28810250 is an apocalyptic number.

28810250 is an abundant number, since it is smaller than the sum of its proper divisors (33819382).

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

28810250 is a wasteful number, since it uses less digits than its factorization.

28810250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 28810250 is about 5367.5180484093. The cubic root of 28810250 is about 306.5601328650.

The spelling of 28810250 in words is "twenty-eight million, eight hundred ten thousand, two hundred fifty".