28332808 has 32 divisors (see below), whose sum is σ = 60917760. Its totient is φ = 12101760.

The previous prime is 28332751. The next prime is 28332847. The reversal of 28332808 is 80823382.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20788 + ... + 22108.

It is an arithmetic number, because the mean of its divisors is an integer number (1903680).

Almost surely, 2^28332808 is an apocalyptic number.

28332808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28332808 is an abundant number, since it is smaller than the sum of its proper divisors (32584952).

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

28332808 is a wasteful number, since it uses less digits than its factorization.

28332808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28332808 is about 5322.8571275209. The cubic root of 28332808 is about 304.8572582983.

The spelling of 28332808 in words is "twenty-eight million, three hundred thirty-two thousand, eight hundred eight".