22240564 has 24 divisors (see below), whose sum is σ = 42386400. Its totient is φ = 10170720.

The previous prime is 22240553. The next prime is 22240579. The reversal of 22240564 is 46504222.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2842 + ... + 7249.

It is an arithmetic number, because the mean of its divisors is an integer number (1766100).

Almost surely, 2^22240564 is an apocalyptic number.

It is an amenable number.

22240564 is a deficient number, since it is larger than the sum of its proper divisors (20145836).

22240564 is a wasteful number, since it uses less digits than its factorization.

22240564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10143 (or 10141 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22240564 is about 4715.9902459611. The cubic root of 22240564 is about 281.2215507685.

Adding to 22240564 its reverse (46504222), we get a palindrome (68744786).

The spelling of 22240564 in words is "twenty-two million, two hundred forty thousand, five hundred sixty-four".