243876 has 12 divisors (see below), whose sum is σ = 569072. Its totient is φ = 81288.

The previous prime is 243871. The next prime is 243889. The reversal of 243876 is 678342.

243876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243876.

It is not an unprimeable number, because it can be changed into a prime (243871) by changing a digit.

243876 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10150 + ... + 10173.

2²⁴³⁸⁷⁶ is an apocalyptic number.

It is an amenable number.

243876 is an abundant number, since it is smaller than the sum of its proper divisors (325196).

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

243876 is a wasteful number, since it uses less digits than its factorization.

243876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20330 (or 20328 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 243876 is about 493.8380301273. The cubic root of 243876 is about 62.4774105031.

The spelling of 243876 in words is "two hundred forty-three thousand, eight hundred seventy-six".