28885632 has 32 divisors (see below), whose sum is σ = 76728480. Its totient is φ = 9628416.

The previous prime is 28885627. The next prime is 28885651. The reversal of 28885632 is 23658882.

It is a tau number, because it is divible by the number of its divisors (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, 37228 + ... + 37995.

It is an arithmetic number, because the mean of its divisors is an integer number (2397765).

Almost surely, 2^28885632 is an apocalyptic number.

It is an amenable number.

28885632 is an abundant number, since it is smaller than the sum of its proper divisors (47842848).

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

28885632 is an equidigital number, since it uses as much as digits as its factorization.

28885632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75240 (or 75228 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 28885632 is about 5374.5355148143. The cubic root of 28885632 is about 306.8272714723.

The spelling of 28885632 in words is "twenty-eight million, eight hundred eighty-five thousand, six hundred thirty-two".