342843 has 4 divisors (see below), whose sum is σ = 457128. Its totient is φ = 228560.

The previous prime is 342841. The next prime is 342847. The reversal of 342843 is 348243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342843 - 2¹ = 342841 is a prime.

It is an Ulam number.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342843.

It is not an unprimeable number, because it can be changed into a prime (342841) 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, 57138 + ... + 57143.

It is an arithmetic number, because the mean of its divisors is an integer number (114282).

2³⁴²⁸⁴³ is an apocalyptic number.

342843 is a deficient number, since it is larger than the sum of its proper divisors (114285).

342843 is a wasteful number, since it uses less digits than its factorization.

342843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114284.

The product of its digits is 2304, while the sum is 24.

The square root of 342843 is about 585.5279668812. The cubic root of 342843 is about 69.9893180979.

The spelling of 342843 in words is "three hundred forty-two thousand, eight hundred forty-three".