22026644 has 12 divisors (see below), whose sum is σ = 39367104. Its totient is φ = 10778904.

The previous prime is 22026601. The next prime is 22026649. The reversal of 22026644 is 44662022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22026649) 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, 58394 + ... + 58769.

It is an arithmetic number, because the mean of its divisors is an integer number (3280592).

Almost surely, 2^22026644 is an apocalyptic number.

It is an amenable number.

22026644 is a deficient number, since it is larger than the sum of its proper divisors (17340460).

22026644 is a wasteful number, since it uses less digits than its factorization.

22026644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117214 (or 117212 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 22026644 is about 4693.2551603338. The cubic root of 22026644 is about 280.3170049097.

Adding to 22026644 its reverse (44662022), we get a palindrome (66688666).

The spelling of 22026644 in words is "twenty-two million, twenty-six thousand, six hundred forty-four".