243048 has 64 divisors (see below), whose sum is σ = 705600. Its totient is φ = 69120.

The previous prime is 243031. The next prime is 243073. The reversal of 243048 is 840342.

It is a happy number.

It is a Cunningham number, because it is equal to 493²-1.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243048.

It is an unprimeable number.

243048 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 15 ways as a sum of consecutive naturals, for example, 5908 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (11025).

2²⁴³⁰⁴⁸ 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 243048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352800).

243048 is an abundant number, since it is smaller than the sum of its proper divisors (462552).

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

243048 is a wasteful number, since it uses less digits than its factorization.

243048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 243048 is about 492.9989858002. The cubic root of 243048 is about 62.4066232286.

The spelling of 243048 in words is "two hundred forty-three thousand, forty-eight".