490566 has 8 divisors (see below), whose sum is σ = 981144. Its totient is φ = 163520.

The previous prime is 490559. The next prime is 490571. The reversal of 490566 is 665094.

It is a sphenic number, since it is the product of 3 distinct primes.

490566 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

490566 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 40875 + ... + 40886.

It is an arithmetic number, because the mean of its divisors is an integer number (122643).

2⁴⁹⁰⁵⁶⁶ is an apocalyptic number.

490566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

490566 is a wasteful number, since it uses less digits than its factorization.

490566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81766.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 490566 is about 700.4041690339. The cubic root of 490566 is about 78.8676950127.

The spelling of 490566 in words is "four hundred ninety thousand, five hundred sixty-six".