340535306393 has 2 divisors, whose sum is σ = 340535306394. Its totient is φ = 340535306392.

The previous prime is 340535306389. The next prime is 340535306467. The reversal of 340535306393 is 393603535043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231353304064 + 109182002329 = 480992^2 + 330427^2 .

It is a cyclic number.

It is not a de Polignac number, because 340535306393 - 2² = 340535306389 is a prime.

It is not a weakly prime, because it can be changed into another prime (340535305393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170267653196 + 170267653197.

It is an arithmetic number, because the mean of its divisors is an integer number (170267653197).

Almost surely, 2^340535306393 is an apocalyptic number.

It is an amenable number.

340535306393 is a deficient number, since it is larger than the sum of its proper divisors (1).

340535306393 is an equidigital number, since it uses as much as digits as its factorization.

340535306393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1312200, while the sum is 44.

The spelling of 340535306393 in words is "three hundred forty billion, five hundred thirty-five million, three hundred six thousand, three hundred ninety-three".