22508768 has 24 divisors (see below), whose sum is σ = 46647720. Its totient is φ = 10661760.

The previous prime is 22508767. The next prime is 22508771. The reversal of 22508768 is 86780522.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22508767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17903 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (1943655).

Almost surely, 2^22508768 is an apocalyptic number.

It is an amenable number.

22508768 is an abundant number, since it is smaller than the sum of its proper divisors (24138952).

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

22508768 is a wasteful number, since it uses less digits than its factorization.

22508768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37050 (or 37042 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 22508768 is about 4744.3406285805. The cubic root of 22508768 is about 282.3474750303.

The spelling of 22508768 in words is "twenty-two million, five hundred eight thousand, seven hundred sixty-eight".