22913044 has 36 divisors (see below), whose sum is σ = 50378272. Its totient is φ = 8925840.

The previous prime is 22912997. The next prime is 22913057. The reversal of 22913044 is 44031922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7 + ... + 6769.

Almost surely, 2^22913044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22913044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25189136).

22913044 is an abundant number, since it is smaller than the sum of its proper divisors (27465228).

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

22913044 is a wasteful number, since it uses less digits than its factorization.

22913044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796 (or 6783 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22913044 is about 4786.7571486341. The cubic root of 22913044 is about 284.0278521914.

Adding to 22913044 its reverse (44031922), we get a palindrome (66944966).

It can be divided in two parts, 2291 and 3044, that added together give a palindrome (5335).

The spelling of 22913044 in words is "twenty-two million, nine hundred thirteen thousand, forty-four".