231743856 has 40 divisors (see below), whose sum is σ = 612599680. Its totient is φ = 75450816.

The previous prime is 231743851. The next prime is 231743867. The reversal of 231743856 is 658347132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231743851) 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 7 ways as a sum of consecutive naturals, for example, 54076 + ... + 58203.

It is an arithmetic number, because the mean of its divisors is an integer number (15314992).

Almost surely, 2^231743856 is an apocalyptic number.

It is an amenable number.

231743856 is an abundant number, since it is smaller than the sum of its proper divisors (380855824).

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

231743856 is a wasteful number, since it uses less digits than its factorization.

231743856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112333 (or 112327 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 231743856 is about 15223.1355508647. The cubic root of 231743856 is about 614.2371452186.

The spelling of 231743856 in words is "two hundred thirty-one million, seven hundred forty-three thousand, eight hundred fifty-six".