340004343893 has 2 divisors, whose sum is σ = 340004343894. Its totient is φ = 340004343892.

The previous prime is 340004343871. The next prime is 340004343907. The reversal of 340004343893 is 398343400043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204225359569 + 135778984324 = 451913^2 + 368482^2 .

It is a cyclic number.

It is not a de Polignac number, because 340004343893 - 2²⁸ = 339735908437 is a prime.

It is a super-2 number, since 2×340004343893² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340004343893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340004343803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170002171946 + 170002171947.

It is an arithmetic number, because the mean of its divisors is an integer number (170002171947).

Almost surely, 2^340004343893 is an apocalyptic number.

It is an amenable number.

340004343893 is a deficient number, since it is larger than the sum of its proper divisors (1).

340004343893 is an equidigital number, since it uses as much as digits as its factorization.

340004343893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 340004343893 in words is "three hundred forty billion, four million, three hundred forty-three thousand, eight hundred ninety-three".