343403243 has 4 divisors (see below), whose sum is σ = 344120640. Its totient is φ = 342685848.

The previous prime is 343403233. The next prime is 343403261. The reversal of 343403243 is 342304343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342304343 = 2203 ⋅155381.

It is a cyclic number.

It is not a de Polignac number, because 343403243 - 2⁴ = 343403227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343403233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357980 + ... + 358937.

It is an arithmetic number, because the mean of its divisors is an integer number (86030160).

Almost surely, 2^343403243 is an apocalyptic number.

343403243 is a deficient number, since it is larger than the sum of its proper divisors (717397).

343403243 is an equidigital number, since it uses as much as digits as its factorization.

343403243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717396.

The product of its (nonzero) digits is 10368, while the sum is 26.

The square root of 343403243 is about 18531.1425173949. The cubic root of 343403243 is about 700.2742075380.

Adding to 343403243 its reverse (342304343), we get a palindrome (685707586).

The spelling of 343403243 in words is "three hundred forty-three million, four hundred three thousand, two hundred forty-three".