342943 has 4 divisors (see below), whose sum is σ = 344608. Its totient is φ = 341280.

The previous prime is 342929. The next prime is 342949. The reversal of 342943 is 349243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349243 = 37 ⋅9439.

It is a cyclic number.

It is not a de Polignac number, because 342943 - 2¹³ = 334751 is a prime.

It is a d-powerful number, because it can be written as 3 + 4² + 9⁵ + 2¹¹ + 4⁹ + 3⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (86152).

2³⁴²⁹⁴³ is an apocalyptic number.

342943 is a deficient number, since it is larger than the sum of its proper divisors (1665).

342943 is a wasteful number, since it uses less digits than its factorization.

342943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its digits is 2592, while the sum is 25.

The square root of 342943 is about 585.6133536729. The cubic root of 342943 is about 69.9961222342.

The spelling of 342943 in words is "three hundred forty-two thousand, nine hundred forty-three".