489447860 has 24 divisors (see below), whose sum is σ = 1121281056. Its totient is φ = 177980960.

The previous prime is 489447859. The next prime is 489447869. The reversal of 489447860 is 68744984.

It is a junction number, because it is equal to n+sod(n) for n = 489447799 and 489447808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489447869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112162 + ... + 1112601.

It is an arithmetic number, because the mean of its divisors is an integer number (46720044).

Almost surely, 2^489447860 is an apocalyptic number.

It is an amenable number.

489447860 is an abundant number, since it is smaller than the sum of its proper divisors (631833196).

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

489447860 is a wasteful number, since it uses less digits than its factorization.

489447860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224783 (or 2224781 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 489447860 is about 22123.4685345675. The cubic root of 489447860 is about 788.0772876344.

The spelling of 489447860 in words is "four hundred eighty-nine million, four hundred forty-seven thousand, eight hundred sixty".