343342321 has 16 divisors (see below), whose sum is σ = 417187584. Its totient is φ = 276179904.

The previous prime is 343342313. The next prime is 343342327. The reversal of 343342321 is 123243343.

It is not a de Polignac number, because 343342321 - 2³ = 343342313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343342327) 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, 11586 + ... + 28651.

It is an arithmetic number, because the mean of its divisors is an integer number (26074224).

Almost surely, 2^343342321 is an apocalyptic number.

It is an amenable number.

343342321 is a deficient number, since it is larger than the sum of its proper divisors (73845263).

343342321 is a wasteful number, since it uses less digits than its factorization.

343342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40320.

The product of its digits is 5184, while the sum is 25.

The square root of 343342321 is about 18529.4986710380. The cubic root of 343342321 is about 700.2327940014.

Adding to 343342321 its reverse (123243343), we get a palindrome (466585664).

It can be divided in two parts, 3433 and 42321, that added together give a palindrome (45754).

The spelling of 343342321 in words is "three hundred forty-three million, three hundred forty-two thousand, three hundred twenty-one".