340343323 has 4 divisors (see below), whose sum is σ = 348258328. Its totient is φ = 332428320.

The previous prime is 340343299. The next prime is 340343401. The reversal of 340343323 is 323343043.

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 340343323 - 2⁵ = 340343291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340343123) 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 in 3 ways as a sum of consecutive naturals, for example, 3957438 + ... + 3957523.

It is an arithmetic number, because the mean of its divisors is an integer number (87064582).

Almost surely, 2^340343323 is an apocalyptic number.

340343323 is a deficient number, since it is larger than the sum of its proper divisors (7915005).

340343323 is an equidigital number, since it uses as much as digits as its factorization.

340343323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915004.

The product of its (nonzero) digits is 7776, while the sum is 25.

The square root of 340343323 is about 18448.3962175578. The cubic root of 340343323 is about 698.1880505519.

Adding to 340343323 its reverse (323343043), we get a palindrome (663686366).

The spelling of 340343323 in words is "three hundred forty million, three hundred forty-three thousand, three hundred twenty-three".