28880504 has 16 divisors (see below), whose sum is σ = 54837600. Its totient is φ = 14257152.

The previous prime is 28880497. The next prime is 28880519. The reversal of 28880504 is 40508882.

It is a super-2 number, since 2×28880504² = 1668167022588032, which contains 22 as substring.

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, 22217 + ... + 23480.

It is an arithmetic number, because the mean of its divisors is an integer number (3427350).

Almost surely, 2^28880504 is an apocalyptic number.

It is an amenable number.

28880504 is a deficient number, since it is larger than the sum of its proper divisors (25957096).

28880504 is a wasteful number, since it uses less digits than its factorization.

28880504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45782 (or 45778 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 28880504 is about 5374.0584291576. The cubic root of 28880504 is about 306.8091136172.

The spelling of 28880504 in words is "twenty-eight million, eight hundred eighty thousand, five hundred four".