489661208 has 16 divisors (see below), whose sum is σ = 919108680. Its totient is φ = 244565568.

The previous prime is 489661189. The next prime is 489661229. The reversal of 489661208 is 802166984.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 25166 + ... + 40157.

Almost surely, 2^489661208 is an apocalyptic number.

It is an amenable number.

489661208 is a deficient number, since it is larger than the sum of its proper divisors (429447472).

489661208 is a wasteful number, since it uses less digits than its factorization.

489661208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66266 (or 66262 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 489661208 is about 22128.2897667217. The cubic root of 489661208 is about 788.1917773843.

The spelling of 489661208 in words is "four hundred eighty-nine million, six hundred sixty-one thousand, two hundred eight".