340000291 has 2 divisors, whose sum is σ = 340000292. Its totient is φ = 340000290.

The previous prime is 340000267. The next prime is 340000361. The reversal of 340000291 is 192000043.

It is a weak prime.

It is an emirp because it is prime and its reverse (192000043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340000291 - 2⁵ = 340000259 is a prime.

It is not a weakly prime, because it can be changed into another prime (340000211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170000145 + 170000146.

It is an arithmetic number, because the mean of its divisors is an integer number (170000146).

Almost surely, 2^340000291 is an apocalyptic number.

340000291 is a deficient number, since it is larger than the sum of its proper divisors (1).

340000291 is an equidigital number, since it uses as much as digits as its factorization.

340000291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 340000291 is about 18439.0968054295. The cubic root of 340000291 is about 697.9534038128.

The spelling of 340000291 in words is "three hundred forty million, two hundred ninety-one", and thus it is an aban number.