340334009 has 2 divisors, whose sum is σ = 340334010. Its totient is φ = 340334008.

The previous prime is 340333997. The next prime is 340334011. The reversal of 340334009 is 900433043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335805625 + 4528384 = 18325^2 + 2128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340334009 is a prime.

Together with 340334011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340334039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170167004 + 170167005.

It is an arithmetic number, because the mean of its divisors is an integer number (170167005).

Almost surely, 2^340334009 is an apocalyptic number.

It is an amenable number.

340334009 is a deficient number, since it is larger than the sum of its proper divisors (1).

340334009 is an equidigital number, since it uses as much as digits as its factorization.

340334009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 340334009 is about 18448.1437819635. The cubic root of 340334009 is about 698.1816815098.

The spelling of 340334009 in words is "three hundred forty million, three hundred thirty-four thousand, nine".