243324444 has 96 divisors (see below), whose sum is σ = 640088064. Its totient is φ = 71305920.

The previous prime is 243324427. The next prime is 243324479. The reversal of 243324444 is 444423342.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925057 + ... + 925319.

It is an arithmetic number, because the mean of its divisors is an integer number (6667584).

Almost surely, 2^243324444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243324444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320044032).

243324444 is an abundant number, since it is smaller than the sum of its proper divisors (396763620).

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

243324444 is a wasteful number, since it uses less digits than its factorization.

243324444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its digits is 36864, while the sum is 30.

The square root of 243324444 is about 15598.8603429866. The cubic root of 243324444 is about 624.3027479793.

Adding to 243324444 its reverse (444423342), we get a palindrome (687747786).

The spelling of 243324444 in words is "two hundred forty-three million, three hundred twenty-four thousand, four hundred forty-four".