243034400441 has 4 divisors (see below), whose sum is σ = 277753600512. Its totient is φ = 208315200372.

The previous prime is 243034400381. The next prime is 243034400447. The reversal of 243034400441 is 144004430342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243034400441 - 2¹⁰ = 243034399417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243034400447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17359600025 + ... + 17359600038.

It is an arithmetic number, because the mean of its divisors is an integer number (69438400128).

Almost surely, 2^243034400441 is an apocalyptic number.

It is an amenable number.

243034400441 is a deficient number, since it is larger than the sum of its proper divisors (34719200071).

243034400441 is an equidigital number, since it uses as much as digits as its factorization.

243034400441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34719200070.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243034400441 its reverse (144004430342), we get a palindrome (387038830783).

The spelling of 243034400441 in words is "two hundred forty-three billion, thirty-four million, four hundred thousand, four hundred forty-one".