243280368 has 40 divisors (see below), whose sum is σ = 698306000. Its totient is φ = 81093312.

The previous prime is 243280357. The next prime is 243280379. The reversal of 243280368 is 863082342.

It is an interprime number because it is at equal distance from previous prime (243280357) and next prime (243280379).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281143 + ... + 282006.

It is an arithmetic number, because the mean of its divisors is an integer number (17457650).

Almost surely, 2^243280368 is an apocalyptic number.

It is an amenable number.

243280368 is an abundant number, since it is smaller than the sum of its proper divisors (455025632).

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

243280368 is a wasteful number, since it uses less digits than its factorization.

243280368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563166 (or 563154 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 243280368 is about 15597.4474834827. The cubic root of 243280368 is about 624.2650501233.

The spelling of 243280368 in words is "two hundred forty-three million, two hundred eighty thousand, three hundred sixty-eight".