344393369 has 2 divisors, whose sum is σ = 344393370. Its totient is φ = 344393368.

The previous prime is 344393323. The next prime is 344393389. The reversal of 344393369 is 963393443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337824400 + 6568969 = 18380^2 + 2563^2 .

It is a cyclic number.

It is not a de Polignac number, because 344393369 - 2²⁸ = 75957913 is a prime.

It is a super-2 number, since 2×344393369² = 237213585222340322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344393389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172196684 + 172196685.

It is an arithmetic number, because the mean of its divisors is an integer number (172196685).

Almost surely, 2^344393369 is an apocalyptic number.

It is an amenable number.

344393369 is a deficient number, since it is larger than the sum of its proper divisors (1).

344393369 is an equidigital number, since it uses as much as digits as its factorization.

344393369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 44.

The square root of 344393369 is about 18557.8384786591. The cubic root of 344393369 is about 700.9465894459.

The spelling of 344393369 in words is "three hundred forty-four million, three hundred ninety-three thousand, three hundred sixty-nine".