240843 has 8 divisors (see below), whose sum is σ = 328768. Its totient is φ = 156744.

The previous prime is 240841. The next prime is 240853. The reversal of 240843 is 348042.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240843 - 2¹ = 240841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240841) 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 7 ways as a sum of consecutive naturals, for example, 805 + ... + 1062.

It is an arithmetic number, because the mean of its divisors is an integer number (41096).

2²⁴⁰⁸⁴³ is an apocalyptic number.

240843 is a deficient number, since it is larger than the sum of its proper divisors (87925).

240843 is a wasteful number, since it uses less digits than its factorization.

240843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 240843 is about 490.7575776287. The cubic root of 240843 is about 62.2173261217.

Adding to 240843 its reverse (348042), we get a palindrome (588885).

The spelling of 240843 in words is "two hundred forty thousand, eight hundred forty-three".