2540339 has 2 divisors, whose sum is σ = 2540340. Its totient is φ = 2540338.

The previous prime is 2540323. The next prime is 2540341. The reversal of 2540339 is 9330452.

2540339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2540339 - 2⁴ = 2540323 is a prime.

Together with 2540341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2540389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270169 + 1270170.

It is an arithmetic number, because the mean of its divisors is an integer number (1270170).

2^2540339 is an apocalyptic number.

2540339 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540339 is an equidigital number, since it uses as much as digits as its factorization.

2540339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2540339 is about 1593.8440952615. The cubic root of 2540339 is about 136.4469687147.

The spelling of 2540339 in words is "two million, five hundred forty thousand, three hundred thirty-nine".