489404 has 12 divisors (see below), whose sum is σ = 886200. Its totient is φ = 236208.

The previous prime is 489389. The next prime is 489407. The reversal of 489404 is 404984.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489407) by changing a digit.

489404 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, 1994 + ... + 2225.

It is an arithmetic number, because the mean of its divisors is an integer number (73850).

2⁴⁸⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

489404 is a deficient number, since it is larger than the sum of its proper divisors (396796).

489404 is a wasteful number, since it uses less digits than its factorization.

489404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 489404 is about 699.5741561836. The cubic root of 489404 is about 78.8053746753.

The spelling of 489404 in words is "four hundred eighty-nine thousand, four hundred four".