344813399 has 4 divisors (see below), whose sum is σ = 394072464. Its totient is φ = 295554336.

The previous prime is 344813317. The next prime is 344813429. The reversal of 344813399 is 993318443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993318443 = 13 ⋅76409111.

It is a de Polignac number, because none of the positive numbers 2^k-344813399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344813099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24629522 + ... + 24629535.

It is an arithmetic number, because the mean of its divisors is an integer number (98518116).

Almost surely, 2^344813399 is an apocalyptic number.

344813399 is a deficient number, since it is larger than the sum of its proper divisors (49259065).

344813399 is an equidigital number, since it uses as much as digits as its factorization.

344813399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49259064.

The product of its digits is 279936, while the sum is 44.

The square root of 344813399 is about 18569.1518115395. The cubic root of 344813399 is about 701.2314371523.

The spelling of 344813399 in words is "three hundred forty-four million, eight hundred thirteen thousand, three hundred ninety-nine".