22624427 has 12 divisors (see below), whose sum is σ = 27031680. Its totient is φ = 18866736.

The previous prime is 22624411. The next prime is 22624429. The reversal of 22624427 is 72442622.

It is a happy number.

It is not a de Polignac number, because 22624427 - 2⁴ = 22624411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22624427.

It is not an unprimeable number, because it can be changed into a prime (22624429) 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 11 ways as a sum of consecutive naturals, for example, 4427 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (2252640).

Almost surely, 2^22624427 is an apocalyptic number.

22624427 is a deficient number, since it is larger than the sum of its proper divisors (4407253).

22624427 is a wasteful number, since it uses less digits than its factorization.

22624427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530 (or 12523 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 22624427 is about 4756.5141648060. The cubic root of 22624427 is about 282.8302536010.

The spelling of 22624427 in words is "twenty-two million, six hundred twenty-four thousand, four hundred twenty-seven".