22440168 has 48 divisors (see below), whose sum is σ = 61085700. Its totient is φ = 7441920.

The previous prime is 22440163. The next prime is 22440179. The reversal of 22440168 is 86104422.

It can be written as a sum of positive squares in 2 ways, for example, as 22297284 + 142884 = 4722^2 + 378^2 .

It is a super-3 number, since 3×22440168³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22440163) 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, 15808 + ... + 17168.

Almost surely, 2^22440168 is an apocalyptic number.

It is an amenable number.

22440168 is an abundant number, since it is smaller than the sum of its proper divisors (38645532).

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

22440168 is a wasteful number, since it uses less digits than its factorization.

22440168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 22440168 is about 4737.1054453115. The cubic root of 22440168 is about 282.0603462222.

The spelling of 22440168 in words is "twenty-two million, four hundred forty thousand, one hundred sixty-eight".