489664480 has 96 divisors (see below), whose sum is σ = 1214051328. Its totient is φ = 186278400.

The previous prime is 489664477. The next prime is 489664489. The reversal of 489664480 is 84466984.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489664489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 997035 + ... + 997525.

It is an arithmetic number, because the mean of its divisors is an integer number (12646368).

Almost surely, 2^489664480 is an apocalyptic number.

489664480 is a gapful number since it is divisible by the number (40) 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 489664480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607025664).

489664480 is an abundant number, since it is smaller than the sum of its proper divisors (724386848).

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

489664480 is a wasteful number, since it uses less digits than its factorization.

489664480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 489664480 is about 22128.3636991080. The cubic root of 489664480 is about 788.1935329912.

The spelling of 489664480 in words is "four hundred eighty-nine million, six hundred sixty-four thousand, four hundred eighty".