243230022 has 72 divisors (see below), whose sum is σ = 619576776. Its totient is φ = 68753664.

The previous prime is 243230017. The next prime is 243230051. The reversal of 243230022 is 220032342.

243230022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 243229977 and 243230004.

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 35 ways as a sum of consecutive naturals, for example, 84133 + ... + 86975.

It is an arithmetic number, because the mean of its divisors is an integer number (8605233).

Almost surely, 2^243230022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243230022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309788388).

243230022 is an abundant number, since it is smaller than the sum of its proper divisors (376346754).

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

243230022 is a wasteful number, since it uses less digits than its factorization.

243230022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962 (or 2952 counting only the distinct ones).

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

The square root of 243230022 is about 15595.8334820554. The cubic root of 243230022 is about 624.2219840143.

Adding to 243230022 its reverse (220032342), we get a palindrome (463262364).

The spelling of 243230022 in words is "two hundred forty-three million, two hundred thirty thousand, twenty-two".