231404232 has 64 divisors (see below), whose sum is σ = 591212160. Its totient is φ = 75456000.

The previous prime is 231404209. The next prime is 231404269. The reversal of 231404232 is 232404132.

It is a junction number, because it is equal to n+sod(n) for n = 231404199 and 231404208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384732 + ... + 385332.

It is an arithmetic number, because the mean of its divisors is an integer number (9237690).

Almost surely, 2^231404232 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 231404232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295606080).

231404232 is an abundant number, since it is smaller than the sum of its proper divisors (359807928).

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

231404232 is a wasteful number, since it uses less digits than its factorization.

231404232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 231404232 is about 15211.9765974051. The cubic root of 231404232 is about 613.9369406887.

Adding to 231404232 its reverse (232404132), we get a palindrome (463808364).

It can be divided in two parts, 23140 and 4232, that added together give a palindrome (27372).

The spelling of 231404232 in words is "two hundred thirty-one million, four hundred four thousand, two hundred thirty-two".