340302349 has 2 divisors, whose sum is σ = 340302350. Its totient is φ = 340302348.

The previous prime is 340302343. The next prime is 340302373. The reversal of 340302349 is 943203043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229674025 + 110628324 = 15155^2 + 10518^2 .

It is a cyclic number.

It is not a de Polignac number, because 340302349 - 2³ = 340302341 is a prime.

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, 170151174 + 170151175.

It is an arithmetic number, because the mean of its divisors is an integer number (170151175).

Almost surely, 2^340302349 is an apocalyptic number.

It is an amenable number.

340302349 is a deficient number, since it is larger than the sum of its proper divisors (1).

340302349 is an equidigital number, since it uses as much as digits as its factorization.

340302349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 340302349 is about 18447.2856810968. The cubic root of 340302349 is about 698.1600310949.

The spelling of 340302349 in words is "three hundred forty million, three hundred two thousand, three hundred forty-nine".