22540338 has 24 divisors (see below), whose sum is σ = 48941568. Its totient is φ = 7497432.

The previous prime is 22540319. The next prime is 22540339. The reversal of 22540338 is 83304522.

22540338 is a `hidden beast` number, since 225 + 403 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9895 + ... + 11957.

It is an arithmetic number, because the mean of its divisors is an integer number (2039232).

Almost surely, 2^22540338 is an apocalyptic number.

22540338 is an abundant number, since it is smaller than the sum of its proper divisors (26401230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22540338 is a wasteful number, since it uses less digits than its factorization.

22540338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 22540338 is about 4747.6665847551. Note that the first 3 decimals coincide. The cubic root of 22540338 is about 282.4794168834.

The spelling of 22540338 in words is "twenty-two million, five hundred forty thousand, three hundred thirty-eight".