489651904 has 42 divisors (see below), whose sum is σ = 1130297460. Its totient is φ = 209849472.

The previous prime is 489651893. The next prime is 489651917. The reversal of 489651904 is 409156984.

It is a happy number.

It is a super-3 number, since 3×489651904³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 74934 + ... + 81205.

Almost surely, 2^489651904 is an apocalyptic number.

It is an amenable number.

489651904 is an abundant number, since it is smaller than the sum of its proper divisors (640645556).

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

489651904 is a wasteful number, since it uses less digits than its factorization.

489651904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156165 (or 156148 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 489651904 is about 22128.0795370949. The cubic root of 489651904 is about 788.1867852370.

The spelling of 489651904 in words is "four hundred eighty-nine million, six hundred fifty-one thousand, nine hundred four".