340303313 has 16 divisors (see below), whose sum is σ = 403054080. Its totient is φ = 281123136.

The previous prime is 340303289. The next prime is 340303339. The reversal of 340303313 is 313303043.

It is not a de Polignac number, because 340303313 - 2¹⁰ = 340302289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340303343) 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 15 ways as a sum of consecutive naturals, for example, 147656 + ... + 149942.

It is an arithmetic number, because the mean of its divisors is an integer number (25190880).

Almost surely, 2^340303313 is an apocalyptic number.

It is an amenable number.

340303313 is a deficient number, since it is larger than the sum of its proper divisors (62750767).

340303313 is a wasteful number, since it uses less digits than its factorization.

340303313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 340303313 is about 18447.3118095835. The cubic root of 340303313 is about 698.1606903377.

Adding to 340303313 its reverse (313303043), we get a palindrome (653606356).

The spelling of 340303313 in words is "three hundred forty million, three hundred three thousand, three hundred thirteen".