242843 has 4 divisors (see below), whose sum is σ = 248808. Its totient is φ = 236880.

The previous prime is 242819. The next prime is 242863. The reversal of 242843 is 348242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348242 = 2 ⋅174121.

It is a cyclic number.

It is not a de Polignac number, because 242843 - 2⁶ = 242779 is a prime.

It is a super-3 number, since 3×242843³ = 42963338658753321, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2³ + 4² + 8 + 2⁷ + 4⁸ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2921 + ... + 3002.

It is an arithmetic number, because the mean of its divisors is an integer number (62202).

2²⁴²⁸⁴³ is an apocalyptic number.

242843 is a deficient number, since it is larger than the sum of its proper divisors (5965).

242843 is an equidigital number, since it uses as much as digits as its factorization.

242843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964.

The product of its digits is 1536, while the sum is 23.

The square root of 242843 is about 492.7910307625. The cubic root of 242843 is about 62.3890725715.

The spelling of 242843 in words is "two hundred forty-two thousand, eight hundred forty-three".