22527664 has 40 divisors (see below), whose sum is σ = 46157760. Its totient is φ = 10633728.

The previous prime is 22527653. The next prime is 22527667. The reversal of 22527664 is 46672522.

It is not an unprimeable number, because it can be changed into a prime (22527667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21292 + ... + 22324.

It is an arithmetic number, because the mean of its divisors is an integer number (1153944).

Almost surely, 2^22527664 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 22527664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23078880).

22527664 is an abundant number, since it is smaller than the sum of its proper divisors (23630096).

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

22527664 is a wasteful number, since it uses less digits than its factorization.

22527664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1111 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 22527664 is about 4746.3316361165. The cubic root of 22527664 is about 282.4264627033.

It can be divided in two parts, 225 and 27664, that added together give a square (27889 = 167²).

The spelling of 22527664 in words is "twenty-two million, five hundred twenty-seven thousand, six hundred sixty-four".