489111984 has 120 divisors (see below), whose sum is σ = 1468499760. Its totient is φ = 151497216.

The previous prime is 489111979. The next prime is 489112021.

489111984 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143322 + ... + 146694.

It is an arithmetic number, because the mean of its divisors is an integer number (12237498).

Almost surely, 2^489111984 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 489111984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734249880).

489111984 is an abundant number, since it is smaller than the sum of its proper divisors (979387776).

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

489111984 is a wasteful number, since it uses less digits than its factorization.

489111984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459 (or 3450 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 489111984 is about 22115.8762883138. The cubic root of 489111984 is about 787.8969777793.

The spelling of 489111984 in words is "four hundred eighty-nine million, one hundred eleven thousand, nine hundred eighty-four".