231285792 has 144 divisors (see below), whose sum is σ = 660623040. Its totient is φ = 70709760.

The previous prime is 231285781. The next prime is 231285829. The reversal of 231285792 is 297582132.

Its product of digits (60480) is a multiple of the sum of its prime divisors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 231285792.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2121834 + ... + 2121942.

It is an arithmetic number, because the mean of its divisors is an integer number (4587660).

Almost surely, 2^231285792 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 231285792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330311520).

231285792 is an abundant number, since it is smaller than the sum of its proper divisors (429337248).

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

231285792 is a wasteful number, since it uses less digits than its factorization.

231285792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 168 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 231285792 is about 15208.0831139233. The cubic root of 231285792 is about 613.8321787027.

It can be divided in two parts, 23128 and 5792, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 231285792 in words is "two hundred thirty-one million, two hundred eighty-five thousand, seven hundred ninety-two".