2540339239 has 2 divisors, whose sum is σ = 2540339240. Its totient is φ = 2540339238.

The previous prime is 2540339203. The next prime is 2540339281. The reversal of 2540339239 is 9329330452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2540339239 - 2²⁵ = 2506784807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540334239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270169619 + 1270169620.

It is an arithmetic number, because the mean of its divisors is an integer number (1270169620).

Almost surely, 2^2540339239 is an apocalyptic number.

2540339239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540339239 is an equidigital number, since it uses as much as digits as its factorization.

2540339239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 40.

The square root of 2540339239 is about 50401.7781333159. The cubic root of 2540339239 is about 1364.4697299380.

The spelling of 2540339239 in words is "two billion, five hundred forty million, three hundred thirty-nine thousand, two hundred thirty-nine".