2740343 has 2 divisors, whose sum is σ = 2740344. Its totient is φ = 2740342.

The previous prime is 2740337. The next prime is 2740357. The reversal of 2740343 is 3430472.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2740343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2740333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370171 + 1370172.

It is an arithmetic number, because the mean of its divisors is an integer number (1370172).

2^2740343 is an apocalyptic number.

2740343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740343 is an equidigital number, since it uses as much as digits as its factorization.

2740343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 2740343 is about 1655.3981394215. The cubic root of 2740343 is about 139.9377784728.

The spelling of 2740343 in words is "two million, seven hundred forty thousand, three hundred forty-three".