343345240 has 64 divisors (see below), whose sum is σ = 884727360. Its totient is φ = 117473280.

The previous prime is 343345217. The next prime is 343345273. The reversal of 343345240 is 42543343.

343345240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×343345240³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 343345199 and 343345208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178524 + ... + 180436.

It is an arithmetic number, because the mean of its divisors is an integer number (13823865).

Almost surely, 2^343345240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343345240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442363680).

343345240 is an abundant number, since it is smaller than the sum of its proper divisors (541382120).

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

343345240 is a wasteful number, since it uses less digits than its factorization.

343345240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 343345240 is about 18529.5774371679. The cubic root of 343345240 is about 700.2347783899.

Adding to 343345240 its reverse (42543343), we get a palindrome (385888583).

The spelling of 343345240 in words is "three hundred forty-three million, three hundred forty-five thousand, two hundred forty".