489441564 has 36 divisors (see below), whose sum is σ = 1290992976. Its totient is φ = 156053568.

The previous prime is 489441551. The next prime is 489441569. The reversal of 489441564 is 465144984.

489441564 is a `hidden beast` number, since 4 + 89 + 4 + 4 + 1 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489441569) 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, 294729 + ... + 296384.

It is an arithmetic number, because the mean of its divisors is an integer number (35860916).

Almost surely, 2^489441564 is an apocalyptic number.

It is an amenable number.

489441564 is an abundant number, since it is smaller than the sum of its proper divisors (801551412).

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

489441564 is a wasteful number, since it uses less digits than its factorization.

489441564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591146 (or 591141 counting only the distinct ones).

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

The square root of 489441564 is about 22123.3262417748. The cubic root of 489441564 is about 788.0739084825.

The spelling of 489441564 in words is "four hundred eighty-nine million, four hundred forty-one thousand, five hundred sixty-four".