489449944984 has 128 divisors (see below), whose sum is σ = 1233409121280. Its totient is φ = 175850611200.

The previous prime is 489449944943. The next prime is 489449945009.

489449944984 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×489449944984² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 489449944984.

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, 8146237 + ... + 8206099.

It is an arithmetic number, because the mean of its divisors is an integer number (9636008760).

Almost surely, 2^489449944984 is an apocalyptic number.

489449944984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489449944984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616704560640).

489449944984 is an abundant number, since it is smaller than the sum of its proper divisors (743959176296).

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

489449944984 is a wasteful number, since it uses less digits than its factorization.

489449944984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60921 (or 60917 counting only the distinct ones).

The product of its digits is 1719926784, while the sum is 76.

The spelling of 489449944984 in words is "four hundred eighty-nine billion, four hundred forty-nine million, nine hundred forty-four thousand, nine hundred eighty-four".