22237444 has 24 divisors (see below), whose sum is σ = 40405400. Its totient is φ = 10699776.

The previous prime is 22237441. The next prime is 22237459. The reversal of 22237444 is 44473222.

It can be written as a sum of positive squares in 4 ways, for example, as 5345344 + 16892100 = 2312^2 + 4110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22237441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13582 + ... + 15130.

Almost surely, 2^22237444 is an apocalyptic number.

It is an amenable number.

22237444 is a deficient number, since it is larger than the sum of its proper divisors (18167956).

22237444 is a wasteful number, since it uses less digits than its factorization.

22237444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its digits is 10752, while the sum is 28.

The square root of 22237444 is about 4715.6594448709. The cubic root of 22237444 is about 281.2083998389.

The spelling of 22237444 in words is "twenty-two million, two hundred thirty-seven thousand, four hundred forty-four".