243442326 has 32 divisors (see below), whose sum is σ = 513555840. Its totient is φ = 76719744.

The previous prime is 243442321. The next prime is 243442333. The reversal of 243442326 is 623244342.

243442326 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243442293 and 243442302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243442321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62286 + ... + 66078.

It is an arithmetic number, because the mean of its divisors is an integer number (16048620).

Almost surely, 2^243442326 is an apocalyptic number.

243442326 is an abundant number, since it is smaller than the sum of its proper divisors (270113514).

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

243442326 is a wasteful number, since it uses less digits than its factorization.

243442326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380.

The product of its digits is 27648, while the sum is 30.

The square root of 243442326 is about 15602.6384307270. The cubic root of 243442326 is about 624.4035491620.

Adding to 243442326 its reverse (623244342), we get a palindrome (866686668).

The spelling of 243442326 in words is "two hundred forty-three million, four hundred forty-two thousand, three hundred twenty-six".