243444341 has 4 divisors (see below), whose sum is σ = 278222112. Its totient is φ = 208666572.

The previous prime is 243444337. The next prime is 243444373. The reversal of 243444341 is 143444342.

It is a happy number.

243444341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 143444342 = 2 ⋅71722171.

It is a cyclic number.

It is not a de Polignac number, because 243444341 - 2² = 243444337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243444541) 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, 17388875 + ... + 17388888.

It is an arithmetic number, because the mean of its divisors is an integer number (69555528).

Almost surely, 2^243444341 is an apocalyptic number.

It is an amenable number.

243444341 is a deficient number, since it is larger than the sum of its proper divisors (34777771).

243444341 is an equidigital number, since it uses as much as digits as its factorization.

243444341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34777770.

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

The square root of 243444341 is about 15602.7030030056. The cubic root of 243444341 is about 624.4052719104.

Adding to 243444341 its reverse (143444342), we get a palindrome (386888683).

Subtracting from 243444341 its reverse (143444342), we obtain a palindrome (99999999).

The spelling of 243444341 in words is "two hundred forty-three million, four hundred forty-four thousand, three hundred forty-one".