343140443 has 4 divisors (see below), whose sum is σ = 343337280. Its totient is φ = 342943608.

The previous prime is 343140431. The next prime is 343140451. The reversal of 343140443 is 344041343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344041343 = 853 ⋅403331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343140443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343140463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95780 + ... + 99297.

It is an arithmetic number, because the mean of its divisors is an integer number (85834320).

Almost surely, 2^343140443 is an apocalyptic number.

343140443 is a deficient number, since it is larger than the sum of its proper divisors (196837).

343140443 is a wasteful number, since it uses less digits than its factorization.

343140443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196836.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 343140443 is about 18524.0503940148. The cubic root of 343140443 is about 700.0955264191.

Adding to 343140443 its reverse (344041343), we get a palindrome (687181786).

The spelling of 343140443 in words is "three hundred forty-three million, one hundred forty thousand, four hundred forty-three".