22395564 has 36 divisors (see below), whose sum is σ = 56789824. Its totient is φ = 7441632.

The previous prime is 22395563. The next prime is 22395589. The reversal of 22395564 is 46559322.

22395564 is a `hidden beast` number, since 2 + 2 + 3 + 95 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22395564² = 1003122573756192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22395563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13509 + ... + 15075.

Almost surely, 2^22395564 is an apocalyptic number.

It is an amenable number.

22395564 is an abundant number, since it is smaller than the sum of its proper divisors (34394260).

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

22395564 is a wasteful number, since it uses less digits than its factorization.

22395564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974 (or 1969 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 22395564 is about 4732.3951652414. The cubic root of 22395564 is about 281.8733398296.

The spelling of 22395564 in words is "twenty-two million, three hundred ninety-five thousand, five hundred sixty-four".