2340439939 has 2 divisors, whose sum is σ = 2340439940. Its totient is φ = 2340439938.

The previous prime is 2340439903. The next prime is 2340439943. The reversal of 2340439939 is 9399340432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2340439939 - 2¹⁵ = 2340407171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2340439139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170219969 + 1170219970.

It is an arithmetic number, because the mean of its divisors is an integer number (1170219970).

Almost surely, 2^2340439939 is an apocalyptic number.

2340439939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340439939 is an equidigital number, since it uses as much as digits as its factorization.

2340439939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 46.

The square root of 2340439939 is about 48378.0935858370. The cubic root of 2340439939 is about 1327.6975898101.

The spelling of 2340439939 in words is "two billion, three hundred forty million, four hundred thirty-nine thousand, nine hundred thirty-nine".