344075681 has 2 divisors, whose sum is σ = 344075682. Its totient is φ = 344075680.

The previous prime is 344075663. The next prime is 344075687. The reversal of 344075681 is 186570443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240870400 + 103205281 = 15520^2 + 10159^2 .

It is a cyclic number.

It is not a de Polignac number, because 344075681 - 2¹⁸ = 343813537 is a prime.

It is a super-2 number, since 2×344075681² = 236776148511227522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (344075687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172037840 + 172037841.

It is an arithmetic number, because the mean of its divisors is an integer number (172037841).

Almost surely, 2^344075681 is an apocalyptic number.

It is an amenable number.

344075681 is a deficient number, since it is larger than the sum of its proper divisors (1).

344075681 is an equidigital number, since it uses as much as digits as its factorization.

344075681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 344075681 is about 18549.2771018172. The cubic root of 344075681 is about 700.7309921601.

The spelling of 344075681 in words is "three hundred forty-four million, seventy-five thousand, six hundred eighty-one".