22442266 has 32 divisors (see below), whose sum is σ = 42675840. Its totient is φ = 8596800.

The previous prime is 22442257. The next prime is 22442269. The reversal of 22442266 is 66224422.

It is a zygodrome in base 10.

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, 8200 + ... + 10588.

It is an arithmetic number, because the mean of its divisors is an integer number (1333620).

Almost surely, 2^22442266 is an apocalyptic number.

22442266 is a deficient number, since it is larger than the sum of its proper divisors (20233574).

22442266 is a wasteful number, since it uses less digits than its factorization.

22442266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470.

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

The square root of 22442266 is about 4737.3268833805. The cubic root of 22442266 is about 282.0691361767.

Adding to 22442266 its reverse (66224422), we get a palindrome (88666688).

The spelling of 22442266 in words is "twenty-two million, four hundred forty-two thousand, two hundred sixty-six".