231882912 has 120 divisors (see below), whose sum is σ = 687990996. Its totient is φ = 76612608.

The previous prime is 231882887. The next prime is 231882919. The reversal of 231882912 is 219288132.

231882912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 229704336 + 2178576 = 15156^2 + 1476^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231882919) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 354778 + ... + 355430.

Almost surely, 2^231882912 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 231882912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343995498).

231882912 is an abundant number, since it is smaller than the sum of its proper divisors (456108084).

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

231882912 is a wasteful number, since it uses less digits than its factorization.

231882912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 795 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 231882912 is about 15227.7021247462. The cubic root of 231882912 is about 614.3599766409.

The spelling of 231882912 in words is "two hundred thirty-one million, eight hundred eighty-two thousand, nine hundred twelve".