340394507 has 2 divisors, whose sum is σ = 340394508. Its totient is φ = 340394506.

The previous prime is 340394501. The next prime is 340394513. The reversal of 340394507 is 705493043.

It is a balanced prime because it is at equal distance from previous prime (340394501) and next prime (340394513).

It is an emirp because it is prime and its reverse (705493043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340394507 - 2⁸ = 340394251 is a prime.

It is not a weakly prime, because it can be changed into another prime (340394501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170197253 + 170197254.

It is an arithmetic number, because the mean of its divisors is an integer number (170197254).

Almost surely, 2^340394507 is an apocalyptic number.

340394507 is a deficient number, since it is larger than the sum of its proper divisors (1).

340394507 is an equidigital number, since it uses as much as digits as its factorization.

340394507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 340394507 is about 18449.7833862623. The cubic root of 340394507 is about 698.2230488056.

The spelling of 340394507 in words is "three hundred forty million, three hundred ninety-four thousand, five hundred seven".