489428 has 12 divisors (see below), whose sum is σ = 884352. Its totient is φ = 236760.

The previous prime is 489427. The next prime is 489431. The reversal of 489428 is 824984.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489427) 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, 1850 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (73696).

2⁴⁸⁹⁴²⁸ is an apocalyptic number.

It is an amenable number.

489428 is a deficient number, since it is larger than the sum of its proper divisors (394924).

489428 is a wasteful number, since it uses less digits than its factorization.

489428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982 (or 3980 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 489428 is about 699.5913092656. The cubic root of 489428 is about 78.8066628394.

The spelling of 489428 in words is "four hundred eighty-nine thousand, four hundred twenty-eight".