28069232 has 20 divisors (see below), whose sum is σ = 57247080. Its totient is φ = 13295808.

The previous prime is 28069183. The next prime is 28069259. The reversal of 28069232 is 23296082.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 45863 + ... + 46470.

It is an arithmetic number, because the mean of its divisors is an integer number (2862354).

Almost surely, 2^28069232 is an apocalyptic number.

It is an amenable number.

28069232 is an abundant number, since it is smaller than the sum of its proper divisors (29177848).

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

28069232 is a wasteful number, since it uses less digits than its factorization.

28069232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92360 (or 92354 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 28069232 is about 5298.0403924470. The cubic root of 28069232 is about 303.9089639691.

The spelling of 28069232 in words is "twenty-eight million, sixty-nine thousand, two hundred thirty-two".