243331343444 has 36 divisors (see below), whose sum is σ = 508741932384. Its totient is φ = 99750730992.

The previous prime is 243331343443. The next prime is 243331343483. The reversal of 243331343444 is 444343133342.

It is a happy number.

243331343444 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 2×243331343444² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243331343398 and 243331343407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243331343443) 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 11 ways as a sum of consecutive naturals, for example, 8199182 + ... + 8228805.

It is an arithmetic number, because the mean of its divisors is an integer number (14131720344).

Almost surely, 2^243331343444 is an apocalyptic number.

It is an amenable number.

243331343444 is an abundant number, since it is smaller than the sum of its proper divisors (265410588940).

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

243331343444 is a wasteful number, since it uses less digits than its factorization.

243331343444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16428044 (or 16428019 counting only the distinct ones).

The product of its digits is 497664, while the sum is 38.

Adding to 243331343444 its reverse (444343133342), we get a palindrome (687674476786).

The spelling of 243331343444 in words is "two hundred forty-three billion, three hundred thirty-one million, three hundred forty-three thousand, four hundred forty-four".