24728564 has 12 divisors (see below), whose sum is σ = 49457184. Its totient is φ = 10597944.

The previous prime is 24728563. The next prime is 24728593. The reversal of 24728564 is 46582742.

24728564 is an admirable number.

It is a super-2 number, since 2×24728564² = 1223003755004192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24728563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441554 + ... + 441609.

It is an arithmetic number, because the mean of its divisors is an integer number (4121432).

Almost surely, 2^24728564 is an apocalyptic number.

It is an amenable number.

24728564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

24728564 is a wasteful number, since it uses less digits than its factorization.

24728564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883174 (or 883172 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 24728564 is about 4972.7823197884. The cubic root of 24728564 is about 291.3396757023.

The spelling of 24728564 in words is "twenty-four million, seven hundred twenty-eight thousand, five hundred sixty-four".