243505324 has 12 divisors (see below), whose sum is σ = 444662064. Its totient is φ = 116459024.

The previous prime is 243505321. The next prime is 243505333. The reversal of 243505324 is 423505342.

It is a junction number, because it is equal to n+sod(n) for n = 243505292 and 243505301.

It is not an unprimeable number, because it can be changed into a prime (243505321) 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 3 ways as a sum of consecutive naturals, for example, 1323307 + ... + 1323490.

It is an arithmetic number, because the mean of its divisors is an integer number (37055172).

Almost surely, 2^243505324 is an apocalyptic number.

It is an amenable number.

243505324 is a deficient number, since it is larger than the sum of its proper divisors (201156740).

243505324 is a wasteful number, since it uses less digits than its factorization.

243505324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646824 (or 2646822 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 243505324 is about 15604.6571253584. The cubic root of 243505324 is about 624.4574055624.

The spelling of 243505324 in words is "two hundred forty-three million, five hundred five thousand, three hundred twenty-four".