243243000 has 768 divisors, whose sum is σ = 1144765440. Its totient is φ = 46656000.

The previous prime is 243242999. The next prime is 243243043. The reversal of 243243000 is 342342.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18710994 + ... + 18711006.

It is an arithmetic number, because the mean of its divisors is an integer number (1490580).

Almost surely, 2^243243000 is an apocalyptic number.

243243000 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 243243000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572382720).

243243000 is an abundant number, since it is smaller than the sum of its proper divisors (901522440).

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

243243000 is a wasteful number, since it uses less digits than its factorization.

243243000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 243243000 is about 15596.2495491705. The cubic root of 243243000 is about 624.2330860002.

Adding to 243243000 its reverse (342342), we get a palindrome (243585342).

The spelling of 243243000 in words is "two hundred forty-three million, two hundred forty-three thousand".