243392 has 14 divisors (see below), whose sum is σ = 483108. Its totient is φ = 121664.

The previous prime is 243391. The next prime is 243401. The reversal of 243392 is 293342.

243392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243392.

It is not an unprimeable number, because it can be changed into a prime (243391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1838 + ... + 1965.

2²⁴³³⁹² is an apocalyptic number.

It is an amenable number.

243392 is a deficient number, since it is larger than the sum of its proper divisors (239716).

243392 is an equidigital number, since it uses as much as digits as its factorization.

243392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815 (or 3805 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 243392 is about 493.3477475372. The cubic root of 243392 is about 62.4360519259.

The spelling of 243392 in words is "two hundred forty-three thousand, three hundred ninety-two".