489805344 has 144 divisors (see below), whose sum is σ = 1603405440. Its totient is φ = 138931200.

The previous prime is 489805339. The next prime is 489805361. The reversal of 489805344 is 443508984.

It is a happy number.

489805344 is a `hidden beast` number, since 489 + 80 + 53 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 489805344.

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 23 ways as a sum of consecutive naturals, for example, 303612 + ... + 305220.

It is an arithmetic number, because the mean of its divisors is an integer number (11134760).

Almost surely, 2^489805344 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 489805344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801702720).

489805344 is an abundant number, since it is smaller than the sum of its proper divisors (1113600096).

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

489805344 is a wasteful number, since it uses less digits than its factorization.

489805344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 489805344 is about 22131.5463535651. The cubic root of 489805344 is about 788.2691068133.

The spelling of 489805344 in words is "four hundred eighty-nine million, eight hundred five thousand, three hundred forty-four".