28108832 has 24 divisors (see below), whose sum is σ = 56044800. Its totient is φ = 13875264.

The previous prime is 28108823. The next prime is 28108841. The reversal of 28108832 is 23880182.

It is an interprime number because it is at equal distance from previous prime (28108823) and next prime (28108841).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 3032 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (2335200).

Almost surely, 2^28108832 is an apocalyptic number.

It is an amenable number.

28108832 is a deficient number, since it is larger than the sum of its proper divisors (27935968).

28108832 is a wasteful number, since it uses less digits than its factorization.

28108832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11208 (or 11200 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 28108832 is about 5301.7763061072. The cubic root of 28108832 is about 304.0518148060.

The spelling of 28108832 in words is "twenty-eight million, one hundred eight thousand, eight hundred thirty-two".