22140635 has 16 divisors (see below), whose sum is σ = 29479680. Its totient is φ = 15827040.

The previous prime is 22140631. The next prime is 22140637. The reversal of 22140635 is 53604122.

It is not a de Polignac number, because 22140635 - 2² = 22140631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22140635.

It is not an unprimeable number, because it can be changed into a prime (22140631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167 + ... + 6656.

It is an arithmetic number, because the mean of its divisors is an integer number (1842480).

Almost surely, 2^22140635 is an apocalyptic number.

22140635 is a deficient number, since it is larger than the sum of its proper divisors (7339045).

22140635 is a wasteful number, since it uses less digits than its factorization.

22140635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22140635 is about 4705.3836187924. The cubic root of 22140635 is about 280.7997331932.

Adding to 22140635 its reverse (53604122), we get a palindrome (75744757).

The spelling of 22140635 in words is "twenty-two million, one hundred forty thousand, six hundred thirty-five".