343309240 has 16 divisors (see below), whose sum is σ = 772445880. Its totient is φ = 137323680.

The previous prime is 343309217. The next prime is 343309297. The reversal of 343309240 is 42903343.

It is a super-2 number, since 2×343309240² = 235722468538755200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343309199 and 343309208.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4291326 + ... + 4291405.

Almost surely, 2^343309240 is an apocalyptic number.

It is an amenable number.

343309240 is an abundant number, since it is smaller than the sum of its proper divisors (429136640).

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

343309240 is a wasteful number, since it uses less digits than its factorization.

343309240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582742 (or 8582738 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 343309240 is about 18528.6059918171. The cubic root of 343309240 is about 700.2103041580.

The spelling of 343309240 in words is "three hundred forty-three million, three hundred nine thousand, two hundred forty".