243981298 has 8 divisors (see below), whose sum is σ = 399242160. Its totient is φ = 110900580.

The previous prime is 243981289. The next prime is 243981317. The reversal of 243981298 is 892189342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 5545008 + ... + 5545051.

It is an arithmetic number, because the mean of its divisors is an integer number (49905270).

Almost surely, 2^243981298 is an apocalyptic number.

243981298 is a deficient number, since it is larger than the sum of its proper divisors (155260862).

243981298 is a wasteful number, since it uses less digits than its factorization.

243981298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090072.

The product of its digits is 248832, while the sum is 46.

The square root of 243981298 is about 15619.9007039097. The cubic root of 243981298 is about 624.8640113735.

The spelling of 243981298 in words is "two hundred forty-three million, nine hundred eighty-one thousand, two hundred ninety-eight".