489680 has 20 divisors (see below), whose sum is σ = 1138692. Its totient is φ = 195840.

The previous prime is 489679. The next prime is 489689. The reversal of 489680 is 86984.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 379456 = 332^2 + 616^2 .

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

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 489680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2981 + ... + 3140.

2⁴⁸⁹⁶⁸⁰ is an apocalyptic number.

489680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489680 is an abundant number, since it is smaller than the sum of its proper divisors (649012).

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

489680 is a wasteful number, since it uses less digits than its factorization.

489680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134 (or 6128 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 489680 is about 699.7713912415. The cubic root of 489680 is about 78.8201860213.

It can be divided in two parts, 489 and 680, that multiplied together give a triangular number (332520 = T₈₁₅).

The spelling of 489680 in words is "four hundred eighty-nine thousand, six hundred eighty".