28624056 has 32 divisors (see below), whose sum is σ = 75770640. Its totient is φ = 8979968.

The previous prime is 28624033. The next prime is 28624087. The reversal of 28624056 is 65042682.

It is a super-2 number, since 2×28624056² = 1638673163782272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 34671 + ... + 35486.

Almost surely, 2^28624056 is an apocalyptic number.

It is an amenable number.

28624056 is an abundant number, since it is smaller than the sum of its proper divisors (47146584).

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

28624056 is a wasteful number, since it uses less digits than its factorization.

28624056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70183 (or 70179 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28624056 is about 5350.1454185844. The cubic root of 28624056 is about 305.8982959030.

It can be divided in two parts, 286 and 24056, that added together give a palindrome (24342).

The spelling of 28624056 in words is "twenty-eight million, six hundred twenty-four thousand, fifty-six".