340680499 has 2 divisors, whose sum is σ = 340680500. Its totient is φ = 340680498.

The previous prime is 340680491. The next prime is 340680511. The reversal of 340680499 is 994086043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340680499 - 2³ = 340680491 is a prime.

It is not a weakly prime, because it can be changed into another prime (340680491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170340249 + 170340250.

It is an arithmetic number, because the mean of its divisors is an integer number (170340250).

Almost surely, 2^340680499 is an apocalyptic number.

340680499 is a deficient number, since it is larger than the sum of its proper divisors (1).

340680499 is an equidigital number, since it uses as much as digits as its factorization.

340680499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 340680499 is about 18457.5323106855. The cubic root of 340680499 is about 698.4185379651.

The spelling of 340680499 in words is "three hundred forty million, six hundred eighty thousand, four hundred ninety-nine".