22066444 has 12 divisors (see below), whose sum is σ = 39345264. Its totient is φ = 10824944.

The previous prime is 22066441. The next prime is 22066469. The reversal of 22066444 is 44466022.

It is not an unprimeable number, because it can be changed into a prime (22066441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51832 + ... + 52255.

It is an arithmetic number, because the mean of its divisors is an integer number (3278772).

Almost surely, 2^22066444 is an apocalyptic number.

It is an amenable number.

22066444 is a deficient number, since it is larger than the sum of its proper divisors (17278820).

22066444 is a wasteful number, since it uses less digits than its factorization.

22066444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104144 (or 104142 counting only the distinct ones).

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

The square root of 22066444 is about 4697.4933741305. The cubic root of 22066444 is about 280.4857384958.

The spelling of 22066444 in words is "twenty-two million, sixty-six thousand, four hundred forty-four".