340339249 has 2 divisors, whose sum is σ = 340339250. Its totient is φ = 340339248.

The previous prime is 340339247. The next prime is 340339253. The reversal of 340339249 is 942933043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339738624 + 600625 = 18432^2 + 775^2 .

It is a cyclic number.

It is not a de Polignac number, because 340339249 - 2¹ = 340339247 is a prime.

Together with 340339247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340339247) 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, 170169624 + 170169625.

It is an arithmetic number, because the mean of its divisors is an integer number (170169625).

Almost surely, 2^340339249 is an apocalyptic number.

It is an amenable number.

340339249 is a deficient number, since it is larger than the sum of its proper divisors (1).

340339249 is an equidigital number, since it uses as much as digits as its factorization.

340339249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 340339249 is about 18448.2858011253. The cubic root of 340339249 is about 698.1852647086.

The spelling of 340339249 in words is "three hundred forty million, three hundred thirty-nine thousand, two hundred forty-nine".