243243736 has 16 divisors (see below), whose sum is σ = 456769800. Its totient is φ = 121438464.

The previous prime is 243243731. The next prime is 243243739. The reversal of 243243736 is 637342342.

243243736 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243243731) 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, 17206 + ... + 27973.

Almost surely, 2^243243736 is an apocalyptic number.

It is an amenable number.

243243736 is a deficient number, since it is larger than the sum of its proper divisors (213526064).

243243736 is a wasteful number, since it uses less digits than its factorization.

243243736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45858 (or 45854 counting only the distinct ones).

The product of its digits is 72576, while the sum is 34.

The square root of 243243736 is about 15596.2731445689. The cubic root of 243243736 is about 624.2337155971.

The spelling of 243243736 in words is "two hundred forty-three million, two hundred forty-three thousand, seven hundred thirty-six".