243888 has 20 divisors (see below), whose sum is σ = 630168. Its totient is φ = 81280.

The previous prime is 243871. The next prime is 243889. The reversal of 243888 is 888342.

243888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243888.

It is not an unprimeable number, because it can be changed into a prime (243889) 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, 2493 + ... + 2588.

2²⁴³⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

243888 is an abundant number, since it is smaller than the sum of its proper divisors (386280).

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

243888 is a wasteful number, since it uses less digits than its factorization.

243888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5086 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 243888 is about 493.8501797104. The cubic root of 243888 is about 62.4784352269.

The spelling of 243888 in words is "two hundred forty-three thousand, eight hundred eighty-eight".