340365439 has 2 divisors, whose sum is σ = 340365440. Its totient is φ = 340365438.

The previous prime is 340365437. The next prime is 340365463. The reversal of 340365439 is 934563043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340365439 - 2¹ = 340365437 is a prime.

Together with 340365437, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 340365398 and 340365407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340365437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170182719 + 170182720.

It is an arithmetic number, because the mean of its divisors is an integer number (170182720).

Almost surely, 2^340365439 is an apocalyptic number.

340365439 is a deficient number, since it is larger than the sum of its proper divisors (1).

340365439 is an equidigital number, since it uses as much as digits as its factorization.

340365439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 37.

The square root of 340365439 is about 18448.9956095176. The cubic root of 340365439 is about 698.2031733131.

The spelling of 340365439 in words is "three hundred forty million, three hundred sixty-five thousand, four hundred thirty-nine".