231568872 has 64 divisors (see below), whose sum is σ = 592764480. Its totient is φ = 75359232.

The previous prime is 231568801. The next prime is 231568873. The reversal of 231568872 is 278865132.

It is not an unprimeable number, because it can be changed into a prime (231568873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390208 + ... + 390800.

It is an arithmetic number, because the mean of its divisors is an integer number (9261945).

Almost surely, 2^231568872 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 231568872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296382240).

231568872 is an abundant number, since it is smaller than the sum of its proper divisors (361195608).

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

231568872 is a wasteful number, since it uses less digits than its factorization.

231568872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 958 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 231568872 is about 15217.3871607448. The cubic root of 231568872 is about 614.0825079134.

The spelling of 231568872 in words is "two hundred thirty-one million, five hundred sixty-eight thousand, eight hundred seventy-two".