243243264 has 72 divisors (see below), whose sum is σ = 706259232. Its totient is φ = 73707520.

The previous prime is 243243251. The next prime is 243243281. The reversal of 243243264 is 462342342.

243243264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5949 + ... + 22844.

It is an arithmetic number, because the mean of its divisors is an integer number (9809156).

Almost surely, 2^243243264 is an apocalyptic number.

243243264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243243264 is an abundant number, since it is smaller than the sum of its proper divisors (463015968).

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

243243264 is a wasteful number, since it uses less digits than its factorization.

243243264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28823 (or 28809 counting only the distinct ones).

The product of its digits is 27648, while the sum is 30.

The square root of 243243264 is about 15596.2580127414. The cubic root of 243243264 is about 624.2333118340.

The spelling of 243243264 in words is "two hundred forty-three million, two hundred forty-three thousand, two hundred sixty-four".