243743368 has 40 divisors (see below), whose sum is σ = 502959150. Its totient is φ = 110739200.

The previous prime is 243743329. The next prime is 243743369. The reversal of 243743368 is 863347342.

It can be written as a sum of positive squares in only one way, i.e., 217916644 + 25826724 = 14762^2 + 5082^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 243743368.

It is not an unprimeable number, because it can be changed into a prime (243743369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 116088 + ... + 118168.

Almost surely, 2^243743368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243743368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251479575).

243743368 is an abundant number, since it is smaller than the sum of its proper divisors (259215782).

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

243743368 is an equidigital number, since it uses as much as digits as its factorization.

243743368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131 (or 2094 counting only the distinct ones).

The product of its digits is 290304, while the sum is 40.

The square root of 243743368 is about 15612.2826005681. The cubic root of 243743368 is about 624.6608233280.

The spelling of 243743368 in words is "two hundred forty-three million, seven hundred forty-three thousand, three hundred sixty-eight".