489040 has 20 divisors (see below), whose sum is σ = 1137204. Its totient is φ = 195584.

The previous prime is 489019. The next prime is 489043. The reversal of 489040 is 40984.

It can be written as a sum of positive squares in 2 ways, for example, as 222784 + 266256 = 472^2 + 516^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 488996 and 489014.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489040.

It is not an unprimeable number, because it can be changed into a prime (489043) by changing a digit.

489040 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, 2977 + ... + 3136.

2⁴⁸⁹⁰⁴⁰ is an apocalyptic number.

489040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489040 is an abundant number, since it is smaller than the sum of its proper divisors (648164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489040 is a wasteful number, since it uses less digits than its factorization.

489040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126 (or 6120 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 489040 is about 699.3139495248. The cubic root of 489040 is about 78.7858323538.

The spelling of 489040 in words is "four hundred eighty-nine thousand, forty".