340402259 has 2 divisors, whose sum is σ = 340402260. Its totient is φ = 340402258.

The previous prime is 340402229. The next prime is 340402267. The reversal of 340402259 is 952204043.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340402259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (340402229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170201129 + 170201130.

It is an arithmetic number, because the mean of its divisors is an integer number (170201130).

Almost surely, 2^340402259 is an apocalyptic number.

340402259 is a deficient number, since it is larger than the sum of its proper divisors (1).

340402259 is an equidigital number, since it uses as much as digits as its factorization.

340402259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 340402259 is about 18449.9934688335. The cubic root of 340402259 is about 698.2283491104.

The spelling of 340402259 in words is "three hundred forty million, four hundred two thousand, two hundred fifty-nine".