28324668 has 24 divisors (see below), whose sum is σ = 69569920. Its totient is φ = 8944560.

The previous prime is 28324651. The next prime is 28324711. The reversal of 28324668 is 86642382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61888 + ... + 62343.

Almost surely, 2^28324668 is an apocalyptic number.

It is an amenable number.

28324668 is an abundant number, since it is smaller than the sum of its proper divisors (41245252).

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

28324668 is a wasteful number, since it uses less digits than its factorization.

28324668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124257 (or 124255 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 28324668 is about 5322.0924456458. The cubic root of 28324668 is about 304.8280603950.

The spelling of 28324668 in words is "twenty-eight million, three hundred twenty-four thousand, six hundred sixty-eight".