489606656 has 120 divisors (see below), whose sum is σ = 1229973360. Its totient is φ = 190586880.

The previous prime is 489606599. The next prime is 489606659. The reversal of 489606656 is 656606984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489606659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433100 + ... + 434228.

It is an arithmetic number, because the mean of its divisors is an integer number (10249778).

Almost surely, 2^489606656 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 489606656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614986680).

489606656 is an abundant number, since it is smaller than the sum of its proper divisors (740366704).

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

489606656 is a wasteful number, since it uses less digits than its factorization.

489606656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1149 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 489606656 is about 22127.0571021092. The cubic root of 489606656 is about 788.1625061018.

The spelling of 489606656 in words is "four hundred eighty-nine million, six hundred six thousand, six hundred fifty-six".