490660 has 12 divisors (see below), whose sum is σ = 1030428. Its totient is φ = 196256.

The previous prime is 490643. The next prime is 490661. The reversal of 490660 is 66094.

It can be written as a sum of positive squares in 2 ways, for example, as 70756 + 419904 = 266^2 + 648^2 .

It is not an unprimeable number, because it can be changed into a prime (490661) by changing a digit.

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, 12247 + ... + 12286.

It is an arithmetic number, because the mean of its divisors is an integer number (85869).

2⁴⁹⁰⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

490660 is an abundant number, since it is smaller than the sum of its proper divisors (539768).

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

490660 is a wasteful number, since it uses less digits than its factorization.

490660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24542 (or 24540 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 490660 is about 700.4712699319. The cubic root of 490660 is about 78.8727321126.

The spelling of 490660 in words is "four hundred ninety thousand, six hundred sixty".