28056036 has 12 divisors (see below), whose sum is σ = 65464112. Its totient is φ = 9352008.

The previous prime is 28056029. The next prime is 28056047. The reversal of 28056036 is 63065082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 28055994 and 28056012.

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, 1168990 + ... + 1169013.

Almost surely, 2^28056036 is an apocalyptic number.

It is an amenable number.

28056036 is an abundant number, since it is smaller than the sum of its proper divisors (37408076).

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

28056036 is a wasteful number, since it uses less digits than its factorization.

28056036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338010 (or 2338008 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 28056036 is about 5296.7948799250. The cubic root of 28056036 is about 303.8613316088.

The spelling of 28056036 in words is "twenty-eight million, fifty-six thousand, thirty-six".