22540366 has 16 divisors (see below), whose sum is σ = 35089200. Its totient is φ = 10846528.

The previous prime is 22540361. The next prime is 22540369. The reversal of 22540366 is 66304522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540361) 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, 32661 + ... + 33343.

It is an arithmetic number, because the mean of its divisors is an integer number (2193075).

Almost surely, 2^22540366 is an apocalyptic number.

22540366 is a deficient number, since it is larger than the sum of its proper divisors (12548834).

22540366 is a wasteful number, since it uses less digits than its factorization.

22540366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 22540366 is about 4747.6695335712. The cubic root of 22540366 is about 282.4795338503.

Adding to 22540366 its reverse (66304522), we get a palindrome (88844888).

The spelling of 22540366 in words is "twenty-two million, five hundred forty thousand, three hundred sixty-six".