344891313 has 18 divisors (see below), whose sum is σ = 539447766. Its totient is φ = 212239872.

The previous prime is 344891297. The next prime is 344891321. The reversal of 344891313 is 313198443.

It can be written as a sum of positive squares in 3 ways, for example, as 23155344 + 321735969 = 4812^2 + 17937^2 .

It is not a de Polignac number, because 344891313 - 2⁴ = 344891297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344891333) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111856 + ... + 114897.

Almost surely, 2^344891313 is an apocalyptic number.

It is an amenable number.

344891313 is a deficient number, since it is larger than the sum of its proper divisors (194556453).

344891313 is a wasteful number, since it uses less digits than its factorization.

344891313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226785 (or 226769 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 344891313 is about 18571.2496348523. The cubic root of 344891313 is about 701.2842499024.

The spelling of 344891313 in words is "three hundred forty-four million, eight hundred ninety-one thousand, three hundred thirteen".