487661184 has 192 divisors, whose sum is σ = 1528268040. Its totient is φ = 148635648.

The previous prime is 487661183. The next prime is 487661189. The reversal of 487661184 is 481166784.

It can be written as a sum of positive squares in 4 ways, for example, as 482241600 + 5419584 = 21960^2 + 2328^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (487661183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724272 + ... + 724944.

Almost surely, 2^487661184 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 487661184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764134020).

487661184 is an abundant number, since it is smaller than the sum of its proper divisors (1040606856).

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

487661184 is a wasteful number, since it uses less digits than its factorization.

487661184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 732 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 487661184 is about 22083.0519629874. The cubic root of 487661184 is about 787.1171883936.

The spelling of 487661184 in words is "four hundred eighty-seven million, six hundred sixty-one thousand, one hundred eighty-four".