489517788 has 24 divisors (see below), whose sum is σ = 1209397392. Its totient is φ = 153574144.

The previous prime is 489517783. The next prime is 489517789. The reversal of 489517788 is 887715984.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489517783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199595 + ... + 1200002.

It is an arithmetic number, because the mean of its divisors is an integer number (50391558).

Almost surely, 2^489517788 is an apocalyptic number.

It is an amenable number.

489517788 is an abundant number, since it is smaller than the sum of its proper divisors (719879604).

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

489517788 is a wasteful number, since it uses less digits than its factorization.

489517788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399621 (or 2399619 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 57.

The square root of 489517788 is about 22125.0488813019. The cubic root of 489517788 is about 788.1148170280.

The spelling of 489517788 in words is "four hundred eighty-nine million, five hundred seventeen thousand, seven hundred eighty-eight".