243222342 has 96 divisors (see below), whose sum is σ = 562609152. Its totient is φ = 69960000.

The previous prime is 243222341. The next prime is 243222347.

It is a happy number.

243222342 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243222341) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2273053 + ... + 2273159.

It is an arithmetic number, because the mean of its divisors is an integer number (5860512).

Almost surely, 2^243222342 is an apocalyptic number.

243222342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 243222342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281304576).

243222342 is an abundant number, since it is smaller than the sum of its proper divisors (319386810).

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

243222342 is a wasteful number, since it uses less digits than its factorization.

243222342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 255 counting only the distinct ones).

The product of its digits is 4608, while the sum is 24.

The square root of 243222342 is about 15595.5872605042. The cubic root of 243222342 is about 624.2154139985.

The spelling of 243222342 in words is "two hundred forty-three million, two hundred twenty-two thousand, three hundred forty-two".