28468988 has 12 divisors (see below), whose sum is σ = 49859040. Its totient is φ = 14223552.

The previous prime is 28468949. The next prime is 28469017. The reversal of 28468988 is 88986482.

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, 6845 + ... + 10187.

It is an arithmetic number, because the mean of its divisors is an integer number (4154920).

Almost surely, 2^28468988 is an apocalyptic number.

It is an amenable number.

28468988 is a deficient number, since it is larger than the sum of its proper divisors (21390052).

28468988 is a wasteful number, since it uses less digits than its factorization.

28468988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476 (or 5474 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 53.

The square root of 28468988 is about 5335.6337955298. The cubic root of 28468988 is about 305.3449040997.

The spelling of 28468988 in words is "twenty-eight million, four hundred sixty-eight thousand, nine hundred eighty-eight".