489818218 has 8 divisors (see below), whose sum is σ = 738787140. Its totient is φ = 243555840.

The previous prime is 489818213. The next prime is 489818221. The reversal of 489818218 is 812818984.

It can be written as a sum of positive squares in 2 ways, for example, as 340660849 + 149157369 = 18457^2 + 12213^2 .

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

It is not an unprimeable number, because it can be changed into a prime (489818213) 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, 676183 + ... + 676906.

Almost surely, 2^489818218 is an apocalyptic number.

489818218 is a deficient number, since it is larger than the sum of its proper divisors (248968922).

489818218 is a wasteful number, since it uses less digits than its factorization.

489818218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353272.

The product of its digits is 294912, while the sum is 49.

The square root of 489818218 is about 22131.8372034497. The cubic root of 489818218 is about 788.2760130178.

The spelling of 489818218 in words is "four hundred eighty-nine million, eight hundred eighteen thousand, two hundred eighteen".