28566344 has 16 divisors (see below), whose sum is σ = 53654400. Its totient is φ = 14258512.

The previous prime is 28566337. The next prime is 28566347. The reversal of 28566344 is 44366582.

It is a junction number, because it is equal to n+sod(n) for n = 28566298 and 28566307.

It is not an unprimeable number, because it can be changed into a prime (28566347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417 + ... + 7935.

It is an arithmetic number, because the mean of its divisors is an integer number (3353400).

Almost surely, 2^28566344 is an apocalyptic number.

It is an amenable number.

28566344 is a deficient number, since it is larger than the sum of its proper divisors (25088056).

28566344 is a wasteful number, since it uses less digits than its factorization.

28566344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172 (or 6168 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 28566344 is about 5344.7491989802. The cubic root of 28566344 is about 305.6925728978.

The spelling of 28566344 in words is "twenty-eight million, five hundred sixty-six thousand, three hundred forty-four".