22665088 has 32 divisors (see below), whose sum is σ = 45581760. Its totient is φ = 11225088.

The previous prime is 22665067. The next prime is 22665089. The reversal of 22665088 is 88056622.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22665089) 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, 13681 + ... + 15247.

It is an arithmetic number, because the mean of its divisors is an integer number (1424430).

Almost surely, 2^22665088 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 22665088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22790880).

22665088 is an abundant number, since it is smaller than the sum of its proper divisors (22916672).

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

22665088 is a wasteful number, since it uses less digits than its factorization.

22665088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 22665088 is about 4760.7864896464. The cubic root of 22665088 is about 282.9995879578. Note that the first 3 decimals are identical.

The spelling of 22665088 in words is "twenty-two million, six hundred sixty-five thousand, eighty-eight".