243041320 has 16 divisors (see below), whose sum is σ = 546843060. Its totient is φ = 97216512.

The previous prime is 243041269. The next prime is 243041321. The reversal of 243041320 is 23140342.

243041320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 242674084 + 367236 = 15578^2 + 606^2 .

It is not an unprimeable number, because it can be changed into a prime (243041321) 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, 3037977 + ... + 3038056.

Almost surely, 2^243041320 is an apocalyptic number.

243041320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243041320 is an abundant number, since it is smaller than the sum of its proper divisors (303801740).

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

243041320 is a wasteful number, since it uses less digits than its factorization.

243041320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6076044 (or 6076040 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243041320 is about 15589.7825514021. The cubic root of 243041320 is about 624.0605148960.

Adding to 243041320 its reverse (23140342), we get a palindrome (266181662).

The spelling of 243041320 in words is "two hundred forty-three million, forty-one thousand, three hundred twenty".