344074391 has 2 divisors, whose sum is σ = 344074392. Its totient is φ = 344074390.

The previous prime is 344074387. The next prime is 344074397. The reversal of 344074391 is 193470443.

It is a weak prime.

It is an emirp because it is prime and its reverse (193470443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344074391 - 2² = 344074387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344074397) 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, 172037195 + 172037196.

It is an arithmetic number, because the mean of its divisors is an integer number (172037196).

Almost surely, 2^344074391 is an apocalyptic number.

344074391 is a deficient number, since it is larger than the sum of its proper divisors (1).

344074391 is an equidigital number, since it uses as much as digits as its factorization.

344074391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 344074391 is about 18549.2423295400. The cubic root of 344074391 is about 700.7301164379.

The spelling of 344074391 in words is "three hundred forty-four million, seventy-four thousand, three hundred ninety-one".