344312305 has 8 divisors (see below), whose sum is σ = 437479272. Its totient is φ = 259246848.

The previous prime is 344312291. The next prime is 344312321. The reversal of 344312305 is 503213443.

It can be written as a sum of positive squares in 4 ways, for example, as 17172736 + 327139569 = 4144^2 + 18087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 344312305 - 2¹¹ = 344310257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344312305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025282 + ... + 2025451.

It is an arithmetic number, because the mean of its divisors is an integer number (54684909).

Almost surely, 2^344312305 is an apocalyptic number.

It is an amenable number.

344312305 is a deficient number, since it is larger than the sum of its proper divisors (93166967).

344312305 is a wasteful number, since it uses less digits than its factorization.

344312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050755.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 344312305 is about 18555.6542595512. The cubic root of 344312305 is about 700.8915883936.

Adding to 344312305 its reverse (503213443), we get a palindrome (847525748).

The spelling of 344312305 in words is "three hundred forty-four million, three hundred twelve thousand, three hundred five".