28925232 has 80 divisors (see below), whose sum is σ = 88184832. Its totient is φ = 7994880.

The previous prime is 28925207. The next prime is 28925243. The reversal of 28925232 is 23252982.

It is a junction number, because it is equal to n+sod(n) for n = 28925193 and 28925202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9028 + ... + 11804.

Almost surely, 2^28925232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28925232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44092416).

28925232 is an abundant number, since it is smaller than the sum of its proper divisors (59259600).

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

28925232 is a wasteful number, since it uses less digits than its factorization.

28925232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2820 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 28925232 is about 5378.2182923344. The cubic root of 28925232 is about 306.9674197159.

The spelling of 28925232 in words is "twenty-eight million, nine hundred twenty-five thousand, two hundred thirty-two".