22481968 has 20 divisors (see below), whose sum is σ = 43761088. Its totient is φ = 11188800.

The previous prime is 22481951. The next prime is 22481969. The reversal of 22481968 is 86918422.

It is a self number, because there is not a number n which added to its sum of digits gives 22481968.

It is not an unprimeable number, because it can be changed into a prime (22481969) 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, 418 + ... + 6718.

Almost surely, 2^22481968 is an apocalyptic number.

It is an amenable number.

22481968 is a deficient number, since it is larger than the sum of its proper divisors (21279120).

22481968 is a wasteful number, since it uses less digits than its factorization.

22481968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 6526 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 22481968 is about 4741.5153695839. The cubic root of 22481968 is about 282.2353717899.

The spelling of 22481968 in words is "twenty-two million, four hundred eighty-one thousand, nine hundred sixty-eight".