489949680 has 160 divisors (see below), whose sum is σ = 1729175040. Its totient is φ = 113597440.

The previous prime is 489949651. The next prime is 489949709. The reversal of 489949680 is 86949984.

It is an interprime number because it is at equal distance from previous prime (489949651) and next prime (489949709).

It is a self number, because there is not a number n which added to its sum of digits gives 489949680.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 56686 + ... + 64754.

It is an arithmetic number, because the mean of its divisors is an integer number (10807344).

Almost surely, 2^489949680 is an apocalyptic number.

489949680 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 489949680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864587520).

489949680 is an abundant number, since it is smaller than the sum of its proper divisors (1239225360).

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

489949680 is a wasteful number, since it uses less digits than its factorization.

489949680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8119 (or 8113 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 489949680 is about 22134.8069790545. The cubic root of 489949680 is about 788.3465283422.

The spelling of 489949680 in words is "four hundred eighty-nine million, nine hundred forty-nine thousand, six hundred eighty".