243300404440 has 64 divisors (see below), whose sum is σ = 556185281760. Its totient is φ = 95766021120.

The previous prime is 243300404317. The next prime is 243300404461. The reversal of 243300404440 is 44404003342.

243300404440 is digitally balanced in base 2, 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 = 243300404399 and 243300404408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2506410 + ... + 2601670.

Almost surely, 2^243300404440 is an apocalyptic number.

243300404440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243300404440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278092640880).

243300404440 is an abundant number, since it is smaller than the sum of its proper divisors (312884877320).

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

243300404440 is a wasteful number, since it uses less digits than its factorization.

243300404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96292 (or 96288 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 243300404440 its reverse (44404003342), we get a palindrome (287704407782).

The spelling of 243300404440 in words is "two hundred forty-three billion, three hundred million, four hundred four thousand, four hundred forty".