22449288 has 64 divisors (see below), whose sum is σ = 59535360. Its totient is φ = 7039296.

The previous prime is 22449283. The next prime is 22449319. The reversal of 22449288 is 88294422.

It is not an unprimeable number, because it can be changed into a prime (22449283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36681 + ... + 37287.

It is an arithmetic number, because the mean of its divisors is an integer number (930240).

Almost surely, 2^22449288 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 22449288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29767680).

22449288 is an abundant number, since it is smaller than the sum of its proper divisors (37086072).

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

22449288 is a wasteful number, since it uses less digits than its factorization.

22449288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 702 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 22449288 is about 4738.0679606776. The cubic root of 22449288 is about 282.0985521446.

The spelling of 22449288 in words is "twenty-two million, four hundred forty-nine thousand, two hundred eighty-eight".