243712 has 48 divisors (see below), whose sum is σ = 589680. Its totient is φ = 98304.

The previous prime is 243709. The next prime is 243769. The reversal of 243712 is 217342.

It is a self number, because there is not a number n which added to its sum of digits gives 243712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14328 + ... + 14344.

It is an arithmetic number, because the mean of its divisors is an integer number (12285).

2²⁴³⁷¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294840).

243712 is an abundant number, since it is smaller than the sum of its proper divisors (345968).

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

243712 is an equidigital number, since it uses as much as digits as its factorization.

243712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46 (or 26 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 243712 is about 493.6719558573. The cubic root of 243712 is about 62.4634025742.

The spelling of 243712 in words is "two hundred forty-three thousand, seven hundred twelve", and thus it is an iban number.