489630816 has 36 divisors (see below), whose sum is σ = 1392388452. Its totient is φ = 163210176.

The previous prime is 489630797. The next prime is 489630851. The reversal of 489630816 is 618036984.

489630816 is a `hidden beast` number, since 4 + 8 + 9 + 630 + 8 + 1 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 849766 + ... + 850341.

It is an arithmetic number, because the mean of its divisors is an integer number (38677457).

Almost surely, 2^489630816 is an apocalyptic number.

It is an amenable number.

489630816 is an abundant number, since it is smaller than the sum of its proper divisors (902757636).

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

489630816 is a wasteful number, since it uses less digits than its factorization.

489630816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700123 (or 1700112 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 489630816 is about 22127.6030333157. The cubic root of 489630816 is about 788.1754700411.

The spelling of 489630816 in words is "four hundred eighty-nine million, six hundred thirty thousand, eight hundred sixteen".