28551392 has 24 divisors (see below), whose sum is σ = 56578536. Its totient is φ = 14182272.

The previous prime is 28551389. The next prime is 28551409. The reversal of 28551392 is 29315582.

It is a congruent number.

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, 2183 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (2357439).

Almost surely, 2^28551392 is an apocalyptic number.

It is an amenable number.

28551392 is a deficient number, since it is larger than the sum of its proper divisors (28027144).

28551392 is a wasteful number, since it uses less digits than its factorization.

28551392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850 (or 5842 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 28551392 is about 5343.3502599025. The cubic root of 28551392 is about 305.6392290859.

The spelling of 28551392 in words is "twenty-eight million, five hundred fifty-one thousand, three hundred ninety-two".