344044513 has 2 divisors, whose sum is σ = 344044514. Its totient is φ = 344044512.

The previous prime is 344044507. The next prime is 344044523. The reversal of 344044513 is 315440443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326597184 + 17447329 = 18072^2 + 4177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344044513 is a prime.

It is not a weakly prime, because it can be changed into another prime (344044523) 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, 172022256 + 172022257.

It is an arithmetic number, because the mean of its divisors is an integer number (172022257).

Almost surely, 2^344044513 is an apocalyptic number.

It is an amenable number.

344044513 is a deficient number, since it is larger than the sum of its proper divisors (1).

344044513 is an equidigital number, since it uses as much as digits as its factorization.

344044513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 344044513 is about 18548.4369422332. The cubic root of 344044513 is about 700.7098330138.

Adding to 344044513 its reverse (315440443), we get a palindrome (659484956).

The spelling of 344044513 in words is "three hundred forty-four million, forty-four thousand, five hundred thirteen".