344814321 has 16 divisors (see below), whose sum is σ = 496287360. Its totient is φ = 212298240.

The previous prime is 344814317. The next prime is 344814329. The reversal of 344814321 is 123418443.

It is not a de Polignac number, because 344814321 - 2² = 344814317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344814329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84160 + ... + 88161.

It is an arithmetic number, because the mean of its divisors is an integer number (31017960).

Almost surely, 2^344814321 is an apocalyptic number.

It is an amenable number.

344814321 is a deficient number, since it is larger than the sum of its proper divisors (151473039).

344814321 is a wasteful number, since it uses less digits than its factorization.

344814321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172376.

The product of its digits is 9216, while the sum is 30.

The square root of 344814321 is about 18569.1766376434. The cubic root of 344814321 is about 701.2320621617.

The spelling of 344814321 in words is "three hundred forty-four million, eight hundred fourteen thousand, three hundred twenty-one".