28825444 has 24 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 14174496.

The previous prime is 28825427. The next prime is 28825469. The reversal of 28825444 is 44452882.

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, 90774 + ... + 91090.

It is an arithmetic number, because the mean of its divisors is an integer number (2136960).

Almost surely, 2^28825444 is an apocalyptic number.

It is an amenable number.

28825444 is a deficient number, since it is larger than the sum of its proper divisors (22461596).

28825444 is a wasteful number, since it uses less digits than its factorization.

28825444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 625 counting only the distinct ones).

The product of its digits is 81920, while the sum is 37.

The square root of 28825444 is about 5368.9332273739. The cubic root of 28825444 is about 306.6140148002.

The spelling of 28825444 in words is "twenty-eight million, eight hundred twenty-five thousand, four hundred forty-four".