489528816 has 120 divisors (see below), whose sum is σ = 1522023120. Its totient is φ = 135023616.

The previous prime is 489528779. The next prime is 489528839. The reversal of 489528816 is 618825984.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64620 + ... + 71796.

It is an arithmetic number, because the mean of its divisors is an integer number (12683526).

Almost surely, 2^489528816 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 489528816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761011560).

489528816 is an abundant number, since it is smaller than the sum of its proper divisors (1032494304).

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

489528816 is a wasteful number, since it uses less digits than its factorization.

489528816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231 (or 7218 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The square root of 489528816 is about 22125.2980996867. The cubic root of 489528816 is about 788.1207352774.

The spelling of 489528816 in words is "four hundred eighty-nine million, five hundred twenty-eight thousand, eight hundred sixteen".