489455916 has 48 divisors (see below), whose sum is σ = 1196149248. Its totient is φ = 155478400.

The previous prime is 489455899. The next prime is 489455929. The reversal of 489455916 is 619554984.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74401 + ... + 80711.

It is an arithmetic number, because the mean of its divisors is an integer number (24919776).

Almost surely, 2^489455916 is an apocalyptic number.

489455916 is a gapful number since it is divisible by the number (46) 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 489455916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598074624).

489455916 is an abundant number, since it is smaller than the sum of its proper divisors (706693332).

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

489455916 is a wasteful number, since it uses less digits than its factorization.

489455916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622 (or 6620 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 489455916 is about 22123.6506029181. The cubic root of 489455916 is about 788.0816113607.

The spelling of 489455916 in words is "four hundred eighty-nine million, four hundred fifty-five thousand, nine hundred sixteen".