231236880 has 240 divisors, whose sum is σ = 852028800. Its totient is φ = 51856896.

The previous prime is 231236861. The next prime is 231236881. The reversal of 231236880 is 88632132.

It is a tau number, because it is divible by the number of its divisors (240).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (231236881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4362934 + ... + 4362986.

It is an arithmetic number, because the mean of its divisors is an integer number (3550120).

Almost surely, 2^231236880 is an apocalyptic number.

231236880 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 231236880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426014400).

231236880 is an abundant number, since it is smaller than the sum of its proper divisors (620791920).

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

231236880 is an equidigital number, since it uses as much as digits as its factorization.

231236880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 231236880 is about 15206.4749366840. The cubic root of 231236880 is about 613.7889048582.

It can be divided in two parts, 23123 and 6880, that added together give a palindrome (30003).

The spelling of 231236880 in words is "two hundred thirty-one million, two hundred thirty-six thousand, eight hundred eighty".