343403320 has 32 divisors (see below), whose sum is σ = 832093920. Its totient is φ = 126794880.

The previous prime is 343403309. The next prime is 343403323. The reversal of 343403320 is 23304343.

It is a junction number, because it is equal to n+sod(n) for n = 343403291 and 343403300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343403323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329676 + ... + 330715.

It is an arithmetic number, because the mean of its divisors is an integer number (26002935).

Almost surely, 2^343403320 is an apocalyptic number.

It is an amenable number.

343403320 is an abundant number, since it is smaller than the sum of its proper divisors (488690600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343403320 is a wasteful number, since it uses less digits than its factorization.

343403320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660415 (or 660411 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 343403320 is about 18531.1445949785. The cubic root of 343403320 is about 700.2742598779.

Adding to 343403320 its reverse (23304343), we get a palindrome (366707663).

The spelling of 343403320 in words is "three hundred forty-three million, four hundred three thousand, three hundred twenty".