22361564 has 12 divisors (see below), whose sum is σ = 40087488. Its totient is φ = 10908000.

The previous prime is 22361539. The next prime is 22361567. The reversal of 22361564 is 46516322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22361567) 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, 68012 + ... + 68339.

It is an arithmetic number, because the mean of its divisors is an integer number (3340624).

Almost surely, 2^22361564 is an apocalyptic number.

It is an amenable number.

22361564 is a deficient number, since it is larger than the sum of its proper divisors (17725924).

22361564 is a wasteful number, since it uses less digits than its factorization.

22361564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136396 (or 136394 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 22361564 is about 4728.8015395024. The cubic root of 22361564 is about 281.7306248481.

Adding to 22361564 its reverse (46516322), we get a palindrome (68877886).

The spelling of 22361564 in words is "twenty-two million, three hundred sixty-one thousand, five hundred sixty-four".