343144321 has 16 divisors (see below), whose sum is σ = 382233600. Its totient is φ = 306042048.

The previous prime is 343144309. The next prime is 343144331. The reversal of 343144321 is 123441343.

It is a de Polignac number, because none of the positive numbers 2^k-343144321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343144331) 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, 44715 + ... + 51823.

It is an arithmetic number, because the mean of its divisors is an integer number (23889600).

Almost surely, 2^343144321 is an apocalyptic number.

It is an amenable number.

343144321 is a deficient number, since it is larger than the sum of its proper divisors (39089279).

343144321 is a wasteful number, since it uses less digits than its factorization.

343144321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7248.

The product of its digits is 3456, while the sum is 25.

The square root of 343144321 is about 18524.1550684505. The cubic root of 343144321 is about 700.0981637845.

Adding to 343144321 its reverse (123441343), we get a palindrome (466585664).

The spelling of 343144321 in words is "three hundred forty-three million, one hundred forty-four thousand, three hundred twenty-one".