22123044 has 30 divisors (see below), whose sum is σ = 57834854. Its totient is φ = 7374240.

The previous prime is 22123043. The next prime is 22123093. The reversal of 22123044 is 44032122.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 6441444 = 3960^2 + 2538^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22123043) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33817 + ... + 34464.

Almost surely, 2^22123044 is an apocalyptic number.

It is an amenable number.

22123044 is an abundant number, since it is smaller than the sum of its proper divisors (35711810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22123044 is a wasteful number, since it uses less digits than its factorization.

22123044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68297 (or 68286 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22123044 is about 4703.5140055069. The cubic root of 22123044 is about 280.7253472378.

Adding to 22123044 its reverse (44032122), we get a palindrome (66155166).

The spelling of 22123044 in words is "twenty-two million, one hundred twenty-three thousand, forty-four".