243440568 has 48 divisors (see below), whose sum is σ = 753508080. Its totient is φ = 69554304.

The previous prime is 243440567. The next prime is 243440581. The reversal of 243440568 is 865044342.

243440568 is a `hidden beast` number, since 24 + 34 + 40 + 568 = 666.

243440568 is digitally balanced in base 2, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (243440567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241005 + ... + 242012.

It is an arithmetic number, because the mean of its divisors is an integer number (15698085).

Almost surely, 2^243440568 is an apocalyptic number.

243440568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

243440568 is an abundant number, since it is smaller than the sum of its proper divisors (510067512).

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

243440568 is a wasteful number, since it uses less digits than its factorization.

243440568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483036 (or 483029 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 243440568 is about 15602.5820939997. The cubic root of 243440568 is about 624.4020461310.

The spelling of 243440568 in words is "two hundred forty-three million, four hundred forty thousand, five hundred sixty-eight".