243240033344 has 112 divisors (see below), whose sum is σ = 602857921536. Its totient is φ = 94599436800.

The previous prime is 243240033343. The next prime is 243240033347. The reversal of 243240033344 is 443330042342.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 243240033344.

It is not an unprimeable number, because it can be changed into a prime (243240033343) 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, 2730629 + ... + 2818299.

Almost surely, 2^243240033344 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 243240033344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301428960768).

243240033344 is an abundant number, since it is smaller than the sum of its proper divisors (359617888192).

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

243240033344 is a wasteful number, since it uses less digits than its factorization.

243240033344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88264 (or 88254 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 243240033344 its reverse (443330042342), we get a palindrome (686570075686).

The spelling of 243240033344 in words is "two hundred forty-three billion, two hundred forty million, thirty-three thousand, three hundred forty-four".