243115404344 has 16 divisors (see below), whose sum is σ = 455847111720. Its totient is φ = 121556174560.

The previous prime is 243115404283. The next prime is 243115404347. The reversal of 243115404344 is 443404511342.

It is a happy number.

243115404344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243115404344² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243115404347) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 769727 + ... + 1038609.

Almost surely, 2^243115404344 is an apocalyptic number.

It is an amenable number.

243115404344 is a deficient number, since it is larger than the sum of its proper divisors (212731707376).

243115404344 is a wasteful number, since it uses less digits than its factorization.

243115404344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381910 (or 381906 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 243115404344 its reverse (443404511342), we get a palindrome (686519915686).

The spelling of 243115404344 in words is "two hundred forty-three billion, one hundred fifteen million, four hundred four thousand, three hundred forty-four".