489289864 has 32 divisors (see below), whose sum is σ = 1082304000. Its totient is φ = 202930560.

The previous prime is 489289841. The next prime is 489289907. The reversal of 489289864 is 468982984.

It is a junction number, because it is equal to n+sod(n) for n = 489289799 and 489289808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139189 + ... + 142660.

It is an arithmetic number, because the mean of its divisors is an integer number (33822000).

Almost surely, 2^489289864 is an apocalyptic number.

It is an amenable number.

489289864 is an abundant number, since it is smaller than the sum of its proper divisors (593014136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489289864 is a wasteful number, since it uses less digits than its factorization.

489289864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281893 (or 281889 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 58.

The square root of 489289864 is about 22119.8974681168. The cubic root of 489289864 is about 787.9924801948.

The spelling of 489289864 in words is "four hundred eighty-nine million, two hundred eighty-nine thousand, eight hundred sixty-four".