28475112 has 32 divisors (see below), whose sum is σ = 73486080. Its totient is φ = 9185280.

The previous prime is 28475099. The next prime is 28475147. The reversal of 28475112 is 21157482.

It is a self number, because there is not a number n which added to its sum of digits gives 28475112.

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, 18393 + ... + 19880.

It is an arithmetic number, because the mean of its divisors is an integer number (2296440).

Almost surely, 2^28475112 is an apocalyptic number.

It is an amenable number.

28475112 is an abundant number, since it is smaller than the sum of its proper divisors (45010968).

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

28475112 is a wasteful number, since it uses less digits than its factorization.

28475112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38313 (or 38309 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 28475112 is about 5336.2076421369. The cubic root of 28475112 is about 305.3667969061.

The spelling of 28475112 in words is "twenty-eight million, four hundred seventy-five thousand, one hundred twelve".