230643856 has 20 divisors (see below), whose sum is σ = 451896300. Its totient is φ = 114025472.

The previous prime is 230643851. The next prime is 230643877. The reversal of 230643856 is 658346032.

It can be written as a sum of positive squares in 2 ways, for example, as 40755456 + 189888400 = 6384^2 + 13780^2 .

It is not an unprimeable number, because it can be changed into a prime (230643851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79561 + ... + 82408.

It is an arithmetic number, because the mean of its divisors is an integer number (22594815).

Almost surely, 2^230643856 is an apocalyptic number.

It is an amenable number.

230643856 is a deficient number, since it is larger than the sum of its proper divisors (221252444).

230643856 is a wasteful number, since it uses less digits than its factorization.

230643856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162066 (or 162060 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 230643856 is about 15186.9633567741. The cubic root of 230643856 is about 613.2637533964.

Adding to 230643856 its reverse (658346032), we get a palindrome (888989888).

The spelling of 230643856 in words is "two hundred thirty million, six hundred forty-three thousand, eight hundred fifty-six".