344323381 has 2 divisors, whose sum is σ = 344323382. Its totient is φ = 344323380.

The previous prime is 344323379. The next prime is 344323471. The reversal of 344323381 is 183323443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327791025 + 16532356 = 18105^2 + 4066^2 .

It is a cyclic number.

It is not a de Polignac number, because 344323381 - 2¹ = 344323379 is a prime.

It is a super-2 number, since 2×344323381² = 237117181406542322, which contains 22 as substring.

Together with 344323379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344323981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172161690 + 172161691.

It is an arithmetic number, because the mean of its divisors is an integer number (172161691).

Almost surely, 2^344323381 is an apocalyptic number.

It is an amenable number.

344323381 is a deficient number, since it is larger than the sum of its proper divisors (1).

344323381 is an equidigital number, since it uses as much as digits as its factorization.

344323381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 344323381 is about 18555.9527106533. The cubic root of 344323381 is about 700.8991038496.

The spelling of 344323381 in words is "three hundred forty-four million, three hundred twenty-three thousand, three hundred eighty-one".