22109244 has 24 divisors (see below), whose sum is σ = 51717120. Its totient is φ = 7351344.

The previous prime is 22109237. The next prime is 22109249. The reversal of 22109244 is 44290122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109249) 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, 3237 + ... + 7395.

It is an arithmetic number, because the mean of its divisors is an integer number (2154880).

Almost surely, 2^22109244 is an apocalyptic number.

It is an amenable number.

22109244 is an abundant number, since it is smaller than the sum of its proper divisors (29607876).

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

22109244 is a wasteful number, since it uses less digits than its factorization.

22109244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609 (or 4607 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22109244 is about 4702.0467883678. The cubic root of 22109244 is about 280.6669644404. Note that the first 3 decimals are identical.

Adding to 22109244 its reverse (44290122), we get a palindrome (66399366).

The spelling of 22109244 in words is "twenty-two million, one hundred nine thousand, two hundred forty-four".