344210381 has 2 divisors, whose sum is σ = 344210382. Its totient is φ = 344210380.

The previous prime is 344210357. The next prime is 344210501. The reversal of 344210381 is 183012443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239475625 + 104734756 = 15475^2 + 10234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344210381 is a prime.

It is a super-2 number, since 2×344210381² = 236961572776330322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344210381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344212381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172105190 + 172105191.

It is an arithmetic number, because the mean of its divisors is an integer number (172105191).

Almost surely, 2^344210381 is an apocalyptic number.

It is an amenable number.

344210381 is a deficient number, since it is larger than the sum of its proper divisors (1).

344210381 is an equidigital number, since it uses as much as digits as its factorization.

344210381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 344210381 is about 18552.9076157890. The cubic root of 344210381 is about 700.8224218032.

The spelling of 344210381 in words is "three hundred forty-four million, two hundred ten thousand, three hundred eighty-one".