243987448 has 16 divisors (see below), whose sum is σ = 462618000. Its totient is φ = 120622656.

The previous prime is 243987439. The next prime is 243987449. The reversal of 243987448 is 844789342.

It is a happy number.

243987448 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243987449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170628 + ... + 172051.

It is an arithmetic number, because the mean of its divisors is an integer number (28913625).

Almost surely, 2^243987448 is an apocalyptic number.

It is an amenable number.

243987448 is a deficient number, since it is larger than the sum of its proper divisors (218630552).

243987448 is a wasteful number, since it uses less digits than its factorization.

243987448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342774 (or 342770 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The square root of 243987448 is about 15620.0975669168. The cubic root of 243987448 is about 624.8692616139.

The spelling of 243987448 in words is "two hundred forty-three million, nine hundred eighty-seven thousand, four hundred forty-eight".