490205 has 4 divisors (see below), whose sum is σ = 588252. Its totient is φ = 392160.

The previous prime is 490201. The next prime is 490207. The reversal of 490205 is 502094.

490205 is nontrivially palindromic in base 4.

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 284089 + 206116 = 533^2 + 454^2 .

It is not a de Polignac number, because 490205 - 2² = 490201 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490201) 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, 49016 + ... + 49025.

It is an arithmetic number, because the mean of its divisors is an integer number (147063).

2⁴⁹⁰²⁰⁵ is an apocalyptic number.

It is an amenable number.

490205 is a deficient number, since it is larger than the sum of its proper divisors (98047).

490205 is an equidigital number, since it uses as much as digits as its factorization.

490205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98046.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 490205 is about 700.1464132594. The cubic root of 490205 is about 78.8483444227.

Adding to 490205 its reverse (502094), we get a palindrome (992299).

It can be divided in two parts, 4 and 90205, that added together give a palindrome (90209).

The spelling of 490205 in words is "four hundred ninety thousand, two hundred five".