343240 has 16 divisors (see below), whose sum is σ = 772380. Its totient is φ = 137280.

The previous prime is 343237. The next prime is 343243. The reversal of 343240 is 42343.

It is an interprime number because it is at equal distance from previous prime (343237) and next prime (343243).

It can be written as a sum of positive squares in 2 ways, for example, as 276676 + 66564 = 526^2 + 258^2 .

It is not an unprimeable number, because it can be changed into a prime (343243) 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, 4251 + ... + 4330.

2³⁴³²⁴⁰ is an apocalyptic number.

It is an amenable number.

343240 is an abundant number, since it is smaller than the sum of its proper divisors (429140).

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

343240 is a wasteful number, since it uses less digits than its factorization.

343240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8592 (or 8588 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 343240 is about 585.8668790775. The cubic root of 343240 is about 70.0163227242.

Adding to 343240 its reverse (42343), we get a palindrome (385583).

The spelling of 343240 in words is "three hundred forty-three thousand, two hundred forty", and thus it is an iban number.