22441444 has 6 divisors (see below), whose sum is σ = 39272534. Its totient is φ = 11220720.

The previous prime is 22441379. The next prime is 22441459. The reversal of 22441444 is 44414422.

It can be written as a sum of positive squares in only one way, i.e., 16000000 + 6441444 = 4000^2 + 2538^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805177 + ... + 2805184.

Almost surely, 2^22441444 is an apocalyptic number.

It is an amenable number.

22441444 is a deficient number, since it is larger than the sum of its proper divisors (16831090).

22441444 is a wasteful number, since it uses less digits than its factorization.

22441444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610365 (or 5610363 counting only the distinct ones).

The product of its digits is 4096, while the sum is 25.

The square root of 22441444 is about 4737.2401247984. The cubic root of 22441444 is about 282.0656923227.

Adding to 22441444 its reverse (44414422), we get a palindrome (66855866).

The spelling of 22441444 in words is "twenty-two million, four hundred forty-one thousand, four hundred forty-four".