340277243 has 2 divisors, whose sum is σ = 340277244. Its totient is φ = 340277242.

The previous prime is 340277237. The next prime is 340277257. The reversal of 340277243 is 342772043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340277243 - 2¹⁴ = 340260859 is a prime.

It is not a weakly prime, because it can be changed into another prime (340277233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170138621 + 170138622.

It is an arithmetic number, because the mean of its divisors is an integer number (170138622).

Almost surely, 2^340277243 is an apocalyptic number.

340277243 is a deficient number, since it is larger than the sum of its proper divisors (1).

340277243 is an equidigital number, since it uses as much as digits as its factorization.

340277243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 340277243 is about 18446.6051890314. The cubic root of 340277243 is about 698.1428616211.

The spelling of 340277243 in words is "three hundred forty million, two hundred seventy-seven thousand, two hundred forty-three".