243222000 has 160 divisors (see below), whose sum is σ = 896323584. Its totient is φ = 55584000.

The previous prime is 243221989. The next prime is 243222103. The reversal of 243222000 is 222342.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39105 + ... + 44895.

Almost surely, 2^243222000 is an apocalyptic number.

243222000 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 243222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448161792).

243222000 is an abundant number, since it is smaller than the sum of its proper divisors (653101584).

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

243222000 is a wasteful number, since it uses less digits than its factorization.

243222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5824 (or 5808 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 243222000 is about 15595.5762958603. The cubic root of 243222000 is about 624.2151214243.

Adding to 243222000 its reverse (222342), we get a palindrome (243444342).

The spelling of 243222000 in words is "two hundred forty-three million, two hundred twenty-two thousand".