28576392 has 32 divisors (see below), whose sum is σ = 76937280. Its totient is φ = 8792640.

The previous prime is 28576369. The next prime is 28576393. The reversal of 28576392 is 29367582.

It is a super-2 number, since 2×28576392² = 1633220359475328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28576393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45484 + ... + 46107.

It is an arithmetic number, because the mean of its divisors is an integer number (2404290).

Almost surely, 2^28576392 is an apocalyptic number.

It is an amenable number.

28576392 is an abundant number, since it is smaller than the sum of its proper divisors (48360888).

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

28576392 is a wasteful number, since it uses less digits than its factorization.

28576392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91613 (or 91609 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 28576392 is about 5345.6891043157. The cubic root of 28576392 is about 305.7284103960.

The spelling of 28576392 in words is "twenty-eight million, five hundred seventy-six thousand, three hundred ninety-two".