22270444 has 24 divisors (see below), whose sum is σ = 44955680. Its totient is φ = 9455616.

The previous prime is 22270439. The next prime is 22270471. The reversal of 22270444 is 44407222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597 + ... + 6700.

Almost surely, 2^22270444 is an apocalyptic number.

It is an amenable number.

22270444 is an abundant number, since it is smaller than the sum of its proper divisors (22685236).

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

22270444 is a wasteful number, since it uses less digits than its factorization.

22270444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417 (or 7415 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 22270444 is about 4719.1571281321. The cubic root of 22270444 is about 281.3474339620.

Adding to 22270444 its reverse (44407222), we get a palindrome (66677666).

The spelling of 22270444 in words is "twenty-two million, two hundred seventy thousand, four hundred forty-four".