343300409 has 4 divisors (see below), whose sum is σ = 349119120. Its totient is φ = 337481700.

The previous prime is 343300387. The next prime is 343300411. The reversal of 343300409 is 904003343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343300409 - 2²⁸ = 74864953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343300469) 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, 2909267 + ... + 2909384.

It is an arithmetic number, because the mean of its divisors is an integer number (87279780).

Almost surely, 2^343300409 is an apocalyptic number.

It is an amenable number.

343300409 is a deficient number, since it is larger than the sum of its proper divisors (5818711).

343300409 is an equidigital number, since it uses as much as digits as its factorization.

343300409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818710.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 343300409 is about 18528.3676830961. The cubic root of 343300409 is about 700.2043002316.

The spelling of 343300409 in words is "three hundred forty-three million, three hundred thousand, four hundred nine".