490289 has 4 divisors (see below), whose sum is σ = 492660. Its totient is φ = 487920.

The previous prime is 490283. The next prime is 490309. The reversal of 490289 is 982094.

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

It can be written as a sum of positive squares in 2 ways, for example, as 462400 + 27889 = 680^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 490289 - 2⁸ = 490033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (490283) 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, 842 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (123165).

2⁴⁹⁰²⁸⁹ is an apocalyptic number.

It is an amenable number.

490289 is a deficient number, since it is larger than the sum of its proper divisors (2371).

490289 is a wasteful number, since it uses less digits than its factorization.

490289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 490289 is about 700.2063981427. The cubic root of 490289 is about 78.8528479010.

The spelling of 490289 in words is "four hundred ninety thousand, two hundred eighty-nine".