489888984 has 128 divisors (see below), whose sum is σ = 1355336640. Its totient is φ = 146644992.

The previous prime is 489888961. The next prime is 489889003.

489888984 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3120234 + ... + 3120390.

Almost surely, 2^489888984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489888984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677668320).

489888984 is an abundant number, since it is smaller than the sum of its proper divisors (865447656).

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

489888984 is a wasteful number, since it uses less digits than its factorization.

489888984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 385 counting only the distinct ones).

The product of its digits is 42467328, while the sum is 66.

The square root of 489888984 is about 22133.4358832966. The cubic root of 489888984 is about 788.3139729875.

The spelling of 489888984 in words is "four hundred eighty-nine million, eight hundred eighty-eight thousand, nine hundred eighty-four".