22981044 has 48 divisors (see below), whose sum is σ = 55838720. Its totient is φ = 7348320.

The previous prime is 22981019. The next prime is 22981061. The reversal of 22981044 is 44018922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60447 + ... + 60825.

Almost surely, 2^22981044 is an apocalyptic number.

It is an amenable number.

22981044 is an abundant number, since it is smaller than the sum of its proper divisors (32857676).

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

22981044 is a wasteful number, since it uses less digits than its factorization.

22981044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22981044 is about 4793.8548163247. The cubic root of 22981044 is about 284.3085484791.

Adding to 22981044 its reverse (44018922), we get a palindrome (66999966).

The spelling of 22981044 in words is "twenty-two million, nine hundred eighty-one thousand, forty-four".