231883040 has 48 divisors (see below), whose sum is σ = 555356088. Its totient is φ = 91478016.

The previous prime is 231883037. The next prime is 231883061. The reversal of 231883040 is 40388132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 154654096 + 77228944 = 12436^2 + 8788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231882994 and 231883012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1754 + ... + 21606.

Almost surely, 2^231883040 is an apocalyptic number.

231883040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231883040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277678044).

231883040 is an abundant number, since it is smaller than the sum of its proper divisors (323473048).

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

231883040 is a wasteful number, since it uses less digits than its factorization.

231883040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19941 (or 19933 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 231883040 is about 15227.7063276122. The cubic root of 231883040 is about 614.3600896837.

It can be divided in two parts, 2318 and 83040, that added together give a palindrome (85358).

The spelling of 231883040 in words is "two hundred thirty-one million, eight hundred eighty-three thousand, forty".