344340413 has 2 divisors, whose sum is σ = 344340414. Its totient is φ = 344340412.

The previous prime is 344340379. The next prime is 344340449. The reversal of 344340413 is 314043443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313892089 + 30448324 = 17717^2 + 5518^2 .

It is a cyclic number.

It is not a de Polignac number, because 344340413 - 2¹⁰ = 344339389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344343413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172170206 + 172170207.

It is an arithmetic number, because the mean of its divisors is an integer number (172170207).

Almost surely, 2^344340413 is an apocalyptic number.

It is an amenable number.

344340413 is a deficient number, since it is larger than the sum of its proper divisors (1).

344340413 is an equidigital number, since it uses as much as digits as its factorization.

344340413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 344340413 is about 18556.4116412630. The cubic root of 344340413 is about 700.9106603470.

Adding to 344340413 its reverse (314043443), we get a palindrome (658383856).

The spelling of 344340413 in words is "three hundred forty-four million, three hundred forty thousand, four hundred thirteen".