489391318 has 8 divisors (see below), whose sum is σ = 790555248. Its totient is φ = 225872904.

The previous prime is 489391289. The next prime is 489391351. The reversal of 489391318 is 813193984.

It is a happy number.

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

It is a super-3 number, since 3×489391318³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9411346 + ... + 9411397.

It is an arithmetic number, because the mean of its divisors is an integer number (98819406).

Almost surely, 2^489391318 is an apocalyptic number.

489391318 is a deficient number, since it is larger than the sum of its proper divisors (301163930).

489391318 is a wasteful number, since it uses less digits than its factorization.

489391318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18822758.

The product of its digits is 186624, while the sum is 46.

The square root of 489391318 is about 22122.1906238962. The cubic root of 489391318 is about 788.0469397086.

The spelling of 489391318 in words is "four hundred eighty-nine million, three hundred ninety-one thousand, three hundred eighteen".