343286540 has 24 divisors (see below), whose sum is σ = 723573312. Its totient is φ = 136805760.

The previous prime is 343286519. The next prime is 343286549. The reversal of 343286540 is 45682343.

It is a self number, because there is not a number n which added to its sum of digits gives 343286540.

It is not an unprimeable number, because it can be changed into a prime (343286549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26249 + ... + 37088.

It is an arithmetic number, because the mean of its divisors is an integer number (30148888).

Almost surely, 2^343286540 is an apocalyptic number.

It is an amenable number.

343286540 is an abundant number, since it is smaller than the sum of its proper divisors (380286772).

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

343286540 is a wasteful number, since it uses less digits than its factorization.

343286540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63617 (or 63615 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 343286540 is about 18527.9934153702. The cubic root of 343286540 is about 700.1948709155.

The spelling of 343286540 in words is "three hundred forty-three million, two hundred eighty-six thousand, five hundred forty".