22275444 has 12 divisors (see below), whose sum is σ = 51976064. Its totient is φ = 7425144.

The previous prime is 22275437. The next prime is 22275493. The reversal of 22275444 is 44457222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928132 + ... + 928155.

Almost surely, 2^22275444 is an apocalyptic number.

It is an amenable number.

22275444 is an abundant number, since it is smaller than the sum of its proper divisors (29700620).

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

22275444 is a wasteful number, since it uses less digits than its factorization.

22275444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856294 (or 1856292 counting only the distinct ones).

The product of its digits is 17920, while the sum is 30.

The square root of 22275444 is about 4719.6868540190. The cubic root of 22275444 is about 281.3684877543.

The spelling of 22275444 in words is "twenty-two million, two hundred seventy-five thousand, four hundred forty-four".