28285324 has 12 divisors (see below), whose sum is σ = 51206400. Its totient is φ = 13654928.

The previous prime is 28285307. The next prime is 28285349. The reversal of 28285324 is 42358282.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28285324.

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, 121804 + ... + 122035.

It is an arithmetic number, because the mean of its divisors is an integer number (4267200).

Almost surely, 2^28285324 is an apocalyptic number.

It is an amenable number.

28285324 is a deficient number, since it is larger than the sum of its proper divisors (22921076).

28285324 is a wasteful number, since it uses less digits than its factorization.

28285324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243872 (or 243870 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 28285324 is about 5318.3948706353. The cubic root of 28285324 is about 304.6868558864.

The spelling of 28285324 in words is "twenty-eight million, two hundred eighty-five thousand, three hundred twenty-four".