22540317 has 32 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 13378560.

The previous prime is 22540237. The next prime is 22540319. The reversal of 22540317 is 71304522.

It is not a de Polignac number, because 22540317 - 2¹⁴ = 22523933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83659 + ... + 83927.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^22540317 is an apocalyptic number.

It is an amenable number.

22540317 is a deficient number, since it is larger than the sum of its proper divisors (11052003).

22540317 is a wasteful number, since it uses less digits than its factorization.

22540317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 22540317 is about 4747.6643731418. The cubic root of 22540317 is about 282.4793291582.

Adding to 22540317 its reverse (71304522), we get a palindrome (93844839).

The spelling of 22540317 in words is "twenty-two million, five hundred forty thousand, three hundred seventeen".