22513768 has 16 divisors (see below), whose sum is σ = 43195680. Its totient is φ = 10994928.

The previous prime is 22513741. The next prime is 22513769. The reversal of 22513768 is 86731522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22513769) by changing a digit.

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, 32380 + ... + 33067.

It is an arithmetic number, because the mean of its divisors is an integer number (2699730).

Almost surely, 2^22513768 is an apocalyptic number.

It is an amenable number.

22513768 is a deficient number, since it is larger than the sum of its proper divisors (20681912).

22513768 is a wasteful number, since it uses less digits than its factorization.

22513768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65496 (or 65492 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 22513768 is about 4744.8675429352. The cubic root of 22513768 is about 282.3683799633.

The spelling of 22513768 in words is "twenty-two million, five hundred thirteen thousand, seven hundred sixty-eight".