340343 has 4 divisors (see below), whose sum is σ = 342168. Its totient is φ = 338520.

The previous prime is 340339. The next prime is 340369. The reversal of 340343 is 343043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340343 - 2² = 340339 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340343.

It is not an unprimeable number, because it can be changed into a prime (340393) 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 in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 1017.

It is an arithmetic number, because the mean of its divisors is an integer number (85542).

2³⁴⁰³⁴³ is an apocalyptic number.

340343 is a deficient number, since it is larger than the sum of its proper divisors (1825).

340343 is a wasteful number, since it uses less digits than its factorization.

340343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 340343 is about 583.3892354166. The cubic root of 340343 is about 69.8187829682.

Adding to 340343 its reverse (343043), we get a palindrome (683386).

The spelling of 340343 in words is "three hundred forty thousand, three hundred forty-three", and thus it is an iban number.