340268497 has 2 divisors, whose sum is σ = 340268498. Its totient is φ = 340268496.

The previous prime is 340268491. The next prime is 340268519. The reversal of 340268497 is 794862043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253573776 + 86694721 = 15924^2 + 9311^2 .

It is a cyclic number.

It is not a de Polignac number, because 340268497 - 2¹¹ = 340266449 is a prime.

It is not a weakly prime, because it can be changed into another prime (340268491) 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, 170134248 + 170134249.

It is an arithmetic number, because the mean of its divisors is an integer number (170134249).

Almost surely, 2^340268497 is an apocalyptic number.

It is an amenable number.

340268497 is a deficient number, since it is larger than the sum of its proper divisors (1).

340268497 is an equidigital number, since it uses as much as digits as its factorization.

340268497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 340268497 is about 18446.3681249182. The cubic root of 340268497 is about 698.1368802143.

The spelling of 340268497 in words is "three hundred forty million, two hundred sixty-eight thousand, four hundred ninety-seven".