28560844 has 12 divisors (see below), whose sum is σ = 53826304. Its totient is φ = 13181904.

The previous prime is 28560839. The next prime is 28560869. The reversal of 28560844 is 44806582.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274572 + ... + 274675.

Almost surely, 2^28560844 is an apocalyptic number.

It is an amenable number.

28560844 is a deficient number, since it is larger than the sum of its proper divisors (25265460).

28560844 is a wasteful number, since it uses less digits than its factorization.

28560844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549264 (or 549262 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 28560844 is about 5344.2346505370. The cubic root of 28560844 is about 305.6729528738.

The spelling of 28560844 in words is "twenty-eight million, five hundred sixty thousand, eight hundred forty-four".