231242568 has 64 divisors (see below), whose sum is σ = 618528960. Its totient is φ = 71786496.

The previous prime is 231242537. The next prime is 231242569. The reversal of 231242568 is 865242132.

231242568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231242569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36655 + ... + 42497.

It is an arithmetic number, because the mean of its divisors is an integer number (9664515).

Almost surely, 2^231242568 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 231242568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309264480).

231242568 is an abundant number, since it is smaller than the sum of its proper divisors (387286392).

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

231242568 is a wasteful number, since it uses less digits than its factorization.

231242568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966 (or 5962 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 231242568 is about 15206.6619611274. The cubic root of 231242568 is about 613.7939375079.

The spelling of 231242568 in words is "two hundred thirty-one million, two hundred forty-two thousand, five hundred sixty-eight".