344242387 has 2 divisors, whose sum is σ = 344242388. Its totient is φ = 344242386.

The previous prime is 344242373. The next prime is 344242501. The reversal of 344242387 is 783242443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344242387 - 2¹¹ = 344240339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344242307) 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, 172121193 + 172121194.

It is an arithmetic number, because the mean of its divisors is an integer number (172121194).

Almost surely, 2^344242387 is an apocalyptic number.

344242387 is a deficient number, since it is larger than the sum of its proper divisors (1).

344242387 is an equidigital number, since it uses as much as digits as its factorization.

344242387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 37.

The square root of 344242387 is about 18553.7701559548. The cubic root of 344242387 is about 700.8441428479.

The spelling of 344242387 in words is "three hundred forty-four million, two hundred forty-two thousand, three hundred eighty-seven".