243323000 has 64 divisors (see below), whose sum is σ = 580245120. Its totient is φ = 95472000.

The previous prime is 243322967. The next prime is 243323011. The reversal of 243323000 is 323342.

It is a self number, because there is not a number n which added to its sum of digits gives 243323000.

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, 50705 + ... + 55295.

It is an arithmetic number, because the mean of its divisors is an integer number (9066330).

Almost surely, 2^243323000 is an apocalyptic number.

243323000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290122560).

243323000 is an abundant number, since it is smaller than the sum of its proper divisors (336922120).

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

243323000 is a wasteful number, since it uses less digits than its factorization.

243323000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665 (or 4651 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 243323000 is about 15598.8140574853. The cubic root of 243323000 is about 624.3015130096.

Adding to 243323000 its reverse (323342), we get a palindrome (243646342).

The spelling of 243323000 in words is "two hundred forty-three million, three hundred twenty-three thousand".