344430631 has 2 divisors, whose sum is σ = 344430632. Its totient is φ = 344430630.

The previous prime is 344430587. The next prime is 344430641. The reversal of 344430631 is 136034443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344430631 - 2¹⁵ = 344397863 is a prime.

It is a super-2 number, since 2×344430631² = 237264919142116322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 344430631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344430641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172215315 + 172215316.

It is an arithmetic number, because the mean of its divisors is an integer number (172215316).

Almost surely, 2^344430631 is an apocalyptic number.

344430631 is a deficient number, since it is larger than the sum of its proper divisors (1).

344430631 is an equidigital number, since it uses as much as digits as its factorization.

344430631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 344430631 is about 18558.8423938564. The cubic root of 344430631 is about 700.9718684169.

The spelling of 344430631 in words is "three hundred forty-four million, four hundred thirty thousand, six hundred thirty-one".