343300403 has 4 divisors (see below), whose sum is σ = 344725128. Its totient is φ = 341875680.

The previous prime is 343300387. The next prime is 343300411. The reversal of 343300403 is 304003343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 343300403 - 2⁴ = 343300387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343300483) 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, 712001 + ... + 712482.

It is an arithmetic number, because the mean of its divisors is an integer number (86181282).

Almost surely, 2^343300403 is an apocalyptic number.

343300403 is a deficient number, since it is larger than the sum of its proper divisors (1424725).

343300403 is a wasteful number, since it uses less digits than its factorization.

343300403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424724.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 343300403 is about 18528.3675211822. The cubic root of 343300403 is about 700.2042961523.

Adding to 343300403 its reverse (304003343), we get a palindrome (647303746).

The spelling of 343300403 in words is "three hundred forty-three million, three hundred thousand, four hundred three".