22444023 has 16 divisors (see below), whose sum is σ = 34684416. Its totient is φ = 12643680.

The previous prime is 22444007. The next prime is 22444027. The reversal of 22444023 is 32044422.

It is not a de Polignac number, because 22444023 - 2⁴ = 22444007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6036 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (2167776).

Almost surely, 2^22444023 is an apocalyptic number.

22444023 is a deficient number, since it is larger than the sum of its proper divisors (12240393).

22444023 is a wasteful number, since it uses less digits than its factorization.

22444023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15134.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 22444023 is about 4737.5123218837. The cubic root of 22444023 is about 282.0764970279.

Adding to 22444023 its reverse (32044422), we get a palindrome (54488445).

The spelling of 22444023 in words is "twenty-two million, four hundred forty-four thousand, twenty-three".