28575012 has 24 divisors (see below), whose sum is σ = 70184800. Its totient is φ = 9023616.

The previous prime is 28574999. The next prime is 28575061. The reversal of 28575012 is 21057582.

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, 62437 + ... + 62892.

Almost surely, 2^28575012 is an apocalyptic number.

It is an amenable number.

28575012 is an abundant number, since it is smaller than the sum of its proper divisors (41609788).

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

28575012 is a wasteful number, since it uses less digits than its factorization.

28575012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125355 (or 125353 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 28575012 is about 5345.5600267886. The cubic root of 28575012 is about 305.7234889443.

The spelling of 28575012 in words is "twenty-eight million, five hundred seventy-five thousand, twelve".