344540659 has 2 divisors, whose sum is σ = 344540660. Its totient is φ = 344540658.

The previous prime is 344540641. The next prime is 344540663. The reversal of 344540659 is 956045443.

It is a strong prime.

It is an emirp because it is prime and its reverse (956045443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344540659 - 2¹³ = 344532467 is a prime.

It is not a weakly prime, because it can be changed into another prime (344540629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172270329 + 172270330.

It is an arithmetic number, because the mean of its divisors is an integer number (172270330).

Almost surely, 2^344540659 is an apocalyptic number.

344540659 is a deficient number, since it is larger than the sum of its proper divisors (1).

344540659 is an equidigital number, since it uses as much as digits as its factorization.

344540659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 344540659 is about 18561.8064584242. The cubic root of 344540659 is about 701.0465020437.

The spelling of 344540659 in words is "three hundred forty-four million, five hundred forty thousand, six hundred fifty-nine".