490305 has 8 divisors (see below), whose sum is σ = 784512. Its totient is φ = 261488.

The previous prime is 490283. The next prime is 490309. The reversal of 490305 is 503094.

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

It is a cyclic number.

It is not a de Polignac number, because 490305 - 2⁶ = 490241 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (490309) 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 7 ways as a sum of consecutive naturals, for example, 16329 + ... + 16358.

It is an arithmetic number, because the mean of its divisors is an integer number (98064).

2⁴⁹⁰³⁰⁵ is an apocalyptic number.

It is an amenable number.

490305 is a deficient number, since it is larger than the sum of its proper divisors (294207).

490305 is a wasteful number, since it uses less digits than its factorization.

490305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32695.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 490305 is about 700.2178232522. The cubic root of 490305 is about 78.8537056480.

Adding to 490305 its reverse (503094), we get a palindrome (993399).

It can be divided in two parts, 4 and 90305, that added together give a palindrome (90309).

The spelling of 490305 in words is "four hundred ninety thousand, three hundred five".