340302343 has 2 divisors, whose sum is σ = 340302344. Its totient is φ = 340302342.

The previous prime is 340302341. The next prime is 340302349. The reversal of 340302343 is 343203043.

It is a weak prime.

It is an emirp because it is prime and its reverse (343203043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340302343 - 2¹ = 340302341 is a prime.

Together with 340302341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340302341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170151171 + 170151172.

It is an arithmetic number, because the mean of its divisors is an integer number (170151172).

Almost surely, 2^340302343 is an apocalyptic number.

340302343 is a deficient number, since it is larger than the sum of its proper divisors (1).

340302343 is an equidigital number, since it uses as much as digits as its factorization.

340302343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 340302343 is about 18447.2855184713. The cubic root of 340302343 is about 698.1600269917.

Adding to 340302343 its reverse (343203043), we get a palindrome (683505386).

The spelling of 340302343 in words is "three hundred forty million, three hundred two thousand, three hundred forty-three".