243181368 has 48 divisors (see below), whose sum is σ = 666567720. Its totient is φ = 80081856.

The previous prime is 243181363. The next prime is 243181387. The reversal of 243181368 is 863181342.

243181368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243181363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14371 + ... + 26322.

Almost surely, 2^243181368 is an apocalyptic number.

It is an amenable number.

243181368 is an abundant number, since it is smaller than the sum of its proper divisors (423386352).

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

243181368 is a wasteful number, since it uses less digits than its factorization.

243181368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40788 (or 40781 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 243181368 is about 15594.2735643569. The cubic root of 243181368 is about 624.1803595999.

The spelling of 243181368 in words is "two hundred forty-three million, one hundred eighty-one thousand, three hundred sixty-eight".