22042444 has 6 divisors (see below), whose sum is σ = 38574284. Its totient is φ = 11021220.

The previous prime is 22042429. The next prime is 22042469. The reversal of 22042444 is 44424022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755302 + ... + 2755309.

Almost surely, 2^22042444 is an apocalyptic number.

It is an amenable number.

22042444 is a deficient number, since it is larger than the sum of its proper divisors (16531840).

22042444 is a wasteful number, since it uses less digits than its factorization.

22042444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510615 (or 5510613 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 22042444 is about 4694.9381252579. The cubic root of 22042444 is about 280.3840139088.

Adding to 22042444 its reverse (44424022), we get a palindrome (66466466).

The spelling of 22042444 in words is "twenty-two million, forty-two thousand, four hundred forty-four".