490666 has 8 divisors (see below), whose sum is σ = 802944. Its totient is φ = 223020.

The previous prime is 490663. The next prime is 490697. The reversal of 490666 is 666094.

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

490666 is a modest number, since divided by 666 gives 490 as remainder.

It is not an unprimeable number, because it can be changed into a prime (490661) 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, 11130 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (100368).

2⁴⁹⁰⁶⁶⁶ is an apocalyptic number.

490666 is a deficient number, since it is larger than the sum of its proper divisors (312278).

490666 is a wasteful number, since it uses less digits than its factorization.

490666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22316.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 490666 is about 700.4755527497. The cubic root of 490666 is about 78.8730536078.

It can be divided in two parts, 490 and 666, that added together give a square (1156 = 34²).

The spelling of 490666 in words is "four hundred ninety thousand, six hundred sixty-six".