489647484 has 96 divisors (see below), whose sum is σ = 1324646400. Its totient is φ = 156219840.

The previous prime is 489647467. The next prime is 489647491. The reversal of 489647484 is 484746984.

489647484 is a `hidden beast` number, since 4 + 8 + 96 + 474 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 489647484.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397149 + ... + 398379.

It is an arithmetic number, because the mean of its divisors is an integer number (13798400).

Almost surely, 2^489647484 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 489647484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662323200).

489647484 is an abundant number, since it is smaller than the sum of its proper divisors (834998916).

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

489647484 is a wasteful number, since it uses less digits than its factorization.

489647484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1392 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The square root of 489647484 is about 22127.9796637651. The cubic root of 489647484 is about 788.1844136229.

The spelling of 489647484 in words is "four hundred eighty-nine million, six hundred forty-seven thousand, four hundred eighty-four".