22442268 has 48 divisors (see below), whose sum is σ = 55480320. Its totient is φ = 7041024.

The previous prime is 22442257. The next prime is 22442269. The reversal of 22442268 is 86224422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442269) 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, 58405 + ... + 58787.

It is an arithmetic number, because the mean of its divisors is an integer number (1155840).

Almost surely, 2^22442268 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 22442268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27740160).

22442268 is an abundant number, since it is smaller than the sum of its proper divisors (33038052).

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

22442268 is a wasteful number, since it uses less digits than its factorization.

22442268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 664 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 22442268 is about 4737.3270944700. The cubic root of 22442268 is about 282.0691445558.

The spelling of 22442268 in words is "twenty-two million, four hundred forty-two thousand, two hundred sixty-eight".