22740044 has 12 divisors (see below), whose sum is σ = 39828600. Its totient is φ = 11360448.

The previous prime is 22740043. The next prime is 22740061. The reversal of 22740044 is 44004722.

It is a super-2 number, since 2×22740044² = 1034219202243872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22740043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7412 + ... + 10020.

It is an arithmetic number, because the mean of its divisors is an integer number (3319050).

Almost surely, 2^22740044 is an apocalyptic number.

It is an amenable number.

22740044 is a deficient number, since it is larger than the sum of its proper divisors (17088556).

22740044 is a wasteful number, since it uses less digits than its factorization.

22740044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792 (or 4790 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 22740044 is about 4768.6522204917. The cubic root of 22740044 is about 283.3112151900.

Adding to 22740044 its reverse (44004722), we get a palindrome (66744766).

The spelling of 22740044 in words is "twenty-two million, seven hundred forty thousand, forty-four".