340330343 has 2 divisors, whose sum is σ = 340330344. Its totient is φ = 340330342.

The previous prime is 340330301. The next prime is 340330351. The reversal of 340330343 is 343033043.

It is a strong prime.

It is an emirp because it is prime and its reverse (343033043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340330343 - 2⁸ = 340330087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340335343) 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, 170165171 + 170165172.

It is an arithmetic number, because the mean of its divisors is an integer number (170165172).

Almost surely, 2^340330343 is an apocalyptic number.

340330343 is a deficient number, since it is larger than the sum of its proper divisors (1).

340330343 is an equidigital number, since it uses as much as digits as its factorization.

340330343 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 23.

The square root of 340330343 is about 18448.0444221061. The cubic root of 340330343 is about 698.1791746164.

Adding to 340330343 its reverse (343033043), we get a palindrome (683363386).

The spelling of 340330343 in words is "three hundred forty million, three hundred thirty thousand, three hundred forty-three".