22266244 has 96 divisors (see below), whose sum is σ = 53738496. Its totient is φ = 7793280.

The previous prime is 22266191. The next prime is 22266247. The reversal of 22266244 is 44266222.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (22266247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268227 + ... + 268309.

It is an arithmetic number, because the mean of its divisors is an integer number (559776).

Almost surely, 2^22266244 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 22266244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26869248).

22266244 is an abundant number, since it is smaller than the sum of its proper divisors (31472252).

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

22266244 is a wasteful number, since it uses less digits than its factorization.

22266244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 183 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 22266244 is about 4718.7121124307. The cubic root of 22266244 is about 281.3297463411.

It can be divided in two parts, 222 and 66244, that added together give a palindrome (66466).

The spelling of 22266244 in words is "twenty-two million, two hundred sixty-six thousand, two hundred forty-four".