340919297 has 2 divisors, whose sum is σ = 340919298. Its totient is φ = 340919296.

The previous prime is 340919291. The next prime is 340919321. The reversal of 340919297 is 792919043.

It is a Cunningham number, because it is equal to 18464²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340919296 + 1 = 18464^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 340919297 - 2⁶ = 340919233 is a prime.

It is not a weakly prime, because it can be changed into another prime (340919291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170459648 + 170459649.

It is an arithmetic number, because the mean of its divisors is an integer number (170459649).

Almost surely, 2^340919297 is an apocalyptic number.

It is an amenable number.

340919297 is a deficient number, since it is larger than the sum of its proper divisors (1).

340919297 is an equidigital number, since it uses as much as digits as its factorization.

340919297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 340919297 is about 18464.0000270797. Note that the first 4 decimals coincide. The cubic root of 340919297 is about 698.5816839799.

The spelling of 340919297 in words is "three hundred forty million, nine hundred nineteen thousand, two hundred ninety-seven".