22323564 has 18 divisors (see below), whose sum is σ = 56429100. Its totient is φ = 7441176.

The previous prime is 22323563. The next prime is 22323571. The reversal of 22323564 is 46532322.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×22323564³ (a number of 23 digits) contains 333 as substring.

22323564 is a modest number, since divided by 3564 gives 2232 as remainder.

It is not an unprimeable number, because it can be changed into a prime (22323563) 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 5 ways as a sum of consecutive naturals, for example, 310014 + ... + 310085.

It is an arithmetic number, because the mean of its divisors is an integer number (3134950).

Almost surely, 2^22323564 is an apocalyptic number.

It is an amenable number.

22323564 is an abundant number, since it is smaller than the sum of its proper divisors (34105536).

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

22323564 is a wasteful number, since it uses less digits than its factorization.

22323564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620109 (or 620104 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 22323564 is about 4724.7818997283. The cubic root of 22323564 is about 281.5709485730.

Adding to 22323564 its reverse (46532322), we get a palindrome (68855886).

The spelling of 22323564 in words is "twenty-two million, three hundred twenty-three thousand, five hundred sixty-four".