24728864 has 24 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 11826496.

The previous prime is 24728857. The next prime is 24728881. The reversal of 24728864 is 46882742.

It is a super-2 number, since 2×24728864² = 1223033429460992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16064 + ... + 17535.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^24728864 is an apocalyptic number.

It is an amenable number.

24728864 is an abundant number, since it is smaller than the sum of its proper divisors (26074336).

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

24728864 is a wasteful number, since it uses less digits than its factorization.

24728864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33632 (or 33624 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 24728864 is about 4972.8124838968. The cubic root of 24728864 is about 291.3408538479.

The spelling of 24728864 in words is "twenty-four million, seven hundred twenty-eight thousand, eight hundred sixty-four".