243912 has 16 divisors (see below), whose sum is σ = 609840. Its totient is φ = 81296.

The previous prime is 243911. The next prime is 243917. The reversal of 243912 is 219342.

243912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243911) 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, 5058 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (38115).

2²⁴³⁹¹² is an apocalyptic number.

It is an amenable number.

243912 is an abundant number, since it is smaller than the sum of its proper divisors (365928).

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

243912 is a wasteful number, since it uses less digits than its factorization.

243912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172 (or 10168 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 243912 is about 493.8744779800. The cubic root of 243912 is about 62.4804845737.

The spelling of 243912 in words is "two hundred forty-three thousand, nine hundred twelve".