231392 has 24 divisors (see below), whose sum is σ = 521136. Its totient is φ = 99072.

The previous prime is 231379. The next prime is 231409. The reversal of 231392 is 293132.

231392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231392.

It is an unprimeable number.

231392 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 3 ways as a sum of consecutive naturals, for example, 293 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (21714).

2²³¹³⁹² is an apocalyptic number.

It is an amenable number.

231392 is an abundant number, since it is smaller than the sum of its proper divisors (289744).

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

231392 is a wasteful number, since it uses less digits than its factorization.

231392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1042 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 231392 is about 481.0322234529. The cubic root of 231392 is about 61.3926122954.

The spelling of 231392 in words is "two hundred thirty-one thousand, three hundred ninety-two".