22442444 has 6 divisors (see below), whose sum is σ = 39274284. Its totient is φ = 11221220.

The previous prime is 22442423. The next prime is 22442467. The reversal of 22442444 is 44424422.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805302 + ... + 2805309.

It is an arithmetic number, because the mean of its divisors is an integer number (6545714).

Almost surely, 2^22442444 is an apocalyptic number.

It is an amenable number.

22442444 is a deficient number, since it is larger than the sum of its proper divisors (16831840).

22442444 is a wasteful number, since it uses less digits than its factorization.

22442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610615 (or 5610613 counting only the distinct ones).

The product of its digits is 8192, while the sum is 26.

The square root of 22442444 is about 4737.3456703095. The cubic root of 22442444 is about 282.0698819150.

Adding to 22442444 its reverse (44424422), we get a palindrome (66866866).

The spelling of 22442444 in words is "twenty-two million, four hundred forty-two thousand, four hundred forty-four".