22344564 has 48 divisors (see below), whose sum is σ = 57435840. Its totient is φ = 6704640.

The previous prime is 22344557. The next prime is 22344571. The reversal of 22344564 is 46544322.

It is an interprime number because it is at equal distance from previous prime (22344557) and next prime (22344571).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13612 + ... + 15164.

It is an arithmetic number, because the mean of its divisors is an integer number (1196580).

Almost surely, 2^22344564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22344564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28717920).

22344564 is an abundant number, since it is smaller than the sum of its proper divisors (35091276).

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

22344564 is a wasteful number, since it uses less digits than its factorization.

22344564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1678 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 22344564 is about 4727.0037021352. The cubic root of 22344564 is about 281.6592131045.

Adding to 22344564 its reverse (46544322), we get a palindrome (68888886).

The spelling of 22344564 in words is "twenty-two million, three hundred forty-four thousand, five hundred sixty-four".