22540339 has 2 divisors, whose sum is σ = 22540340. Its totient is φ = 22540338.

The previous prime is 22540319. The next prime is 22540361. The reversal of 22540339 is 93304522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22540339 - 2¹⁷ = 22409267 is a prime.

It is not a weakly prime, because it can be changed into another prime (22540319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270169 + 11270170.

It is an arithmetic number, because the mean of its divisors is an integer number (11270170).

Almost surely, 2^22540339 is an apocalyptic number.

22540339 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540339 is an equidigital number, since it uses as much as digits as its factorization.

22540339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 22540339 is about 4747.6666900700. Note that the first 4 decimals coincide. The cubic root of 22540339 is about 282.4794210608.

The spelling of 22540339 in words is "twenty-two million, five hundred forty thousand, three hundred thirty-nine".