489644 has 12 divisors (see below), whose sum is σ = 863184. Its totient is φ = 243024.

The previous prime is 489631. The next prime is 489653. The reversal of 489644 is 446984.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 1034.

It is an arithmetic number, because the mean of its divisors is an integer number (71932).

2⁴⁸⁹⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

489644 is a deficient number, since it is larger than the sum of its proper divisors (373540).

489644 is a wasteful number, since it uses less digits than its factorization.

489644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 902 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 489644 is about 699.7456680823. The cubic root of 489644 is about 78.8182544223.

The spelling of 489644 in words is "four hundred eighty-nine thousand, six hundred forty-four".