243384 has 16 divisors (see below), whose sum is σ = 608520. Its totient is φ = 81120.

The previous prime is 243367. The next prime is 243391. The reversal of 243384 is 483342.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 10141 = 243384 / (2 + 4 + 3 + 3 + 8 + 4).

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

It is a congruent number.

It is an unprimeable number.

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, 5047 + ... + 5094.

2²⁴³³⁸⁴ is an apocalyptic number.

243384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243384 is an abundant number, since it is smaller than the sum of its proper divisors (365136).

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

243384 is a wasteful number, since it uses less digits than its factorization.

243384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150 (or 10146 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 243384 is about 493.3396395993. The cubic root of 243384 is about 62.4353678527.

It can be divided in two parts, 24338 and 4, that added together give a palindrome (24342).

The spelling of 243384 in words is "two hundred forty-three thousand, three hundred eighty-four".