28252908 has 24 divisors (see below), whose sum is σ = 73248560. Its totient is φ = 9417600.

The previous prime is 28252891. The next prime is 28252919. The reversal of 28252908 is 80925282.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130693 + ... + 130908.

Almost surely, 2^28252908 is an apocalyptic number.

It is an amenable number.

28252908 is an abundant number, since it is smaller than the sum of its proper divisors (44995652).

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

28252908 is a wasteful number, since it uses less digits than its factorization.

28252908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261614 (or 261606 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28252908 is about 5315.3464609562. The cubic root of 28252908 is about 304.5704173575.

The spelling of 28252908 in words is "twenty-eight million, two hundred fifty-two thousand, nine hundred eight".