243323430 has 32 divisors (see below), whose sum is σ = 667401984. Its totient is φ = 55616736.

The previous prime is 243323413. The next prime is 243323441. The reversal of 243323430 is 34323342.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243323430.

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 15 ways as a sum of consecutive naturals, for example, 579132 + ... + 579551.

It is an arithmetic number, because the mean of its divisors is an integer number (20856312).

Almost surely, 2^243323430 is an apocalyptic number.

243323430 is an abundant number, since it is smaller than the sum of its proper divisors (424078554).

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

243323430 is a wasteful number, since it uses less digits than its factorization.

243323430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158700.

The product of its (nonzero) digits is 5184, while the sum is 24.

The square root of 243323430 is about 15598.8278405783. The cubic root of 243323430 is about 624.3018807643.

Adding to 243323430 its reverse (34323342), we get a palindrome (277646772).

The spelling of 243323430 in words is "two hundred forty-three million, three hundred twenty-three thousand, four hundred thirty".