22444623 has 12 divisors (see below), whose sum is σ = 32669208. Its totient is φ = 14848080.

The previous prime is 22444577. The next prime is 22444661. The reversal of 22444623 is 32644422.

It is not a de Polignac number, because 22444623 - 2¹⁰ = 22443599 is a prime.

It is a super-2 number, since 2×22444623² = 1007522203224258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8340 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (2722434).

Almost surely, 2^22444623 is an apocalyptic number.

22444623 is a deficient number, since it is larger than the sum of its proper divisors (10224585).

22444623 is a wasteful number, since it uses less digits than its factorization.

22444623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19174 (or 19171 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 22444623 is about 4737.5756458341. The cubic root of 22444623 is about 282.0790106056.

The spelling of 22444623 in words is "twenty-two million, four hundred forty-four thousand, six hundred twenty-three".