489946 has 8 divisors (see below), whose sum is σ = 766944. Its totient is φ = 234300.

The previous prime is 489943. The next prime is 489959. The reversal of 489946 is 649984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 489899 and 489908.

It is not an unprimeable number, because it can be changed into a prime (489941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5280 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (95868).

2⁴⁸⁹⁹⁴⁶ is an apocalyptic number.

489946 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

489946 is a deficient number, since it is larger than the sum of its proper divisors (276998).

489946 is a wasteful number, since it uses less digits than its factorization.

489946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676.

The product of its digits is 62208, while the sum is 40.

The square root of 489946 is about 699.9614275087. The cubic root of 489946 is about 78.8344554587.

The spelling of 489946 in words is "four hundred eighty-nine thousand, nine hundred forty-six".