22640116 has 24 divisors (see below), whose sum is σ = 40619880. Its totient is φ = 11037312.

The previous prime is 22640113. The next prime is 22640131. The reversal of 22640116 is 61104622.

It can be written as a sum of positive squares in 4 ways, for example, as 2390116 + 20250000 = 1546^2 + 4500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56830 + ... + 57226.

It is an arithmetic number, because the mean of its divisors is an integer number (1692495).

Almost surely, 2^22640116 is an apocalyptic number.

It is an amenable number.

22640116 is a deficient number, since it is larger than the sum of its proper divisors (17979764).

22640116 is a wasteful number, since it uses less digits than its factorization.

22640116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22640116 is about 4758.1630909417. The cubic root of 22640116 is about 282.8956150876.

Adding to 22640116 its reverse (61104622), we get a palindrome (83744738).

The spelling of 22640116 in words is "twenty-two million, six hundred forty thousand, one hundred sixteen".