2740945939 has 2 divisors, whose sum is σ = 2740945940. Its totient is φ = 2740945938.

The previous prime is 2740945901. The next prime is 2740945969. The reversal of 2740945939 is 9395490472.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2740945939 - 2²⁷ = 2606728211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2740945969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370472969 + 1370472970.

It is an arithmetic number, because the mean of its divisors is an integer number (1370472970).

Almost surely, 2^2740945939 is an apocalyptic number.

2740945939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740945939 is an equidigital number, since it uses as much as digits as its factorization.

2740945939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The square root of 2740945939 is about 52354.0441513356. The cubic root of 2740945939 is about 1399.4804090555.

The spelling of 2740945939 in words is "two billion, seven hundred forty million, nine hundred forty-five thousand, nine hundred thirty-nine".