243113340 has 48 divisors (see below), whose sum is σ = 682577280. Its totient is φ = 64653120.

The previous prime is 243113327. The next prime is 243113389. The reversal of 243113340 is 43311342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17395 + ... + 28085.

It is an arithmetic number, because the mean of its divisors is an integer number (14220360).

Almost surely, 2^243113340 is an apocalyptic number.

243113340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243113340 is an abundant number, since it is smaller than the sum of its proper divisors (439463940).

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

243113340 is a wasteful number, since it uses less digits than its factorization.

243113340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11082 (or 11080 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 243113340 is about 15592.0922265102. The cubic root of 243113340 is about 624.1221510539.

Adding to 243113340 its reverse (43311342), we get a palindrome (286424682).

The spelling of 243113340 in words is "two hundred forty-three million, one hundred thirteen thousand, three hundred forty".