340306849 has 2 divisors, whose sum is σ = 340306850. Its totient is φ = 340306848.

The previous prime is 340306843. The next prime is 340306903. The reversal of 340306849 is 948603043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218093824 + 122213025 = 14768^2 + 11055^2 .

It is a cyclic number.

It is not a de Polignac number, because 340306849 - 2⁷ = 340306721 is a prime.

It is not a weakly prime, because it can be changed into another prime (340306843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170153424 + 170153425.

It is an arithmetic number, because the mean of its divisors is an integer number (170153425).

Almost surely, 2^340306849 is an apocalyptic number.

It is an amenable number.

340306849 is a deficient number, since it is larger than the sum of its proper divisors (1).

340306849 is an equidigital number, since it uses as much as digits as its factorization.

340306849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 340306849 is about 18447.4076498569. The cubic root of 340306849 is about 698.1631084625.

The spelling of 340306849 in words is "three hundred forty million, three hundred six thousand, eight hundred forty-nine".