489968 has 20 divisors (see below), whose sum is σ = 961248. Its totient is φ = 241920.

The previous prime is 489961. The next prime is 489977. The reversal of 489968 is 869984.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489961) by changing a digit.

489968 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673 + ... + 1943.

2⁴⁸⁹⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

489968 is a deficient number, since it is larger than the sum of its proper divisors (471280).

489968 is a wasteful number, since it uses less digits than its factorization.

489968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 489968 is about 699.9771424840. The cubic root of 489968 is about 78.8356354064.

The spelling of 489968 in words is "four hundred eighty-nine thousand, nine hundred sixty-eight".