243440322 has 8 divisors (see below), whose sum is σ = 486880656. Its totient is φ = 81146772.

The previous prime is 243440321. The next prime is 243440333. The reversal of 243440322 is 223044342.

It is a sphenic number, since it is the product of 3 distinct primes.

243440322 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 243440292 and 243440301.

It is not an unprimeable number, because it can be changed into a prime (243440321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20286688 + ... + 20286699.

It is an arithmetic number, because the mean of its divisors is an integer number (60860082).

Almost surely, 2^243440322 is an apocalyptic number.

243440322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243440322 is a wasteful number, since it uses less digits than its factorization.

243440322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40573392.

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

The square root of 243440322 is about 15602.5742106872. The cubic root of 243440322 is about 624.4018358087.

Adding to 243440322 its reverse (223044342), we get a palindrome (466484664).

The spelling of 243440322 in words is "two hundred forty-three million, four hundred forty thousand, three hundred twenty-two".