243305434344 has 64 divisors (see below), whose sum is σ = 731745676800. Its totient is φ = 65857109184.

The previous prime is 243305434321. The next prime is 243305434391. The reversal of 243305434344 is 443434503342.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38108562 + ... + 38114945.

It is an arithmetic number, because the mean of its divisors is an integer number (11433526200).

Almost surely, 2^243305434344 is an apocalyptic number.

243305434344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243305434344 is an abundant number, since it is smaller than the sum of its proper divisors (488440242456).

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

243305434344 is a wasteful number, since it uses less digits than its factorization.

243305434344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76223542 (or 76223538 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 39.

Adding to 243305434344 its reverse (443434503342), we get a palindrome (686739937686).

The spelling of 243305434344 in words is "two hundred forty-three billion, three hundred five million, four hundred thirty-four thousand, three hundred forty-four".