490166 has 4 divisors (see below), whose sum is σ = 735252. Its totient is φ = 245082.

The previous prime is 490159. The next prime is 490169. The reversal of 490166 is 661094.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122540 + ... + 122543.

It is an arithmetic number, because the mean of its divisors is an integer number (183813).

2⁴⁹⁰¹⁶⁶ is an apocalyptic number.

490166 is a deficient number, since it is larger than the sum of its proper divisors (245086).

490166 is a wasteful number, since it uses less digits than its factorization.

490166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245085.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 490166 is about 700.1185613880. The cubic root of 490166 is about 78.8462533472.

It can be divided in two parts, 490 and 166, that added together give a palindrome (656).

The spelling of 490166 in words is "four hundred ninety thousand, one hundred sixty-six".