489681056 has 24 divisors (see below), whose sum is σ = 1020770100. Its totient is φ = 230437888.

The previous prime is 489681047. The next prime is 489681067. The reversal of 489681056 is 650186984.

It can be written as a sum of positive squares in 2 ways, for example, as 481363600 + 8317456 = 21940^2 + 2884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 489681056.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449531 + ... + 450618.

Almost surely, 2^489681056 is an apocalyptic number.

It is an amenable number.

489681056 is an abundant number, since it is smaller than the sum of its proper divisors (531089044).

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

489681056 is a wasteful number, since it uses less digits than its factorization.

489681056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900176 (or 900168 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 489681056 is about 22128.7382378662. The cubic root of 489681056 is about 788.2024268012.

The spelling of 489681056 in words is "four hundred eighty-nine million, six hundred eighty-one thousand, fifty-six".