490900 has 18 divisors (see below), whose sum is σ = 1065470. Its totient is φ = 196320.

The previous prime is 490891. The next prime is 490913. The reversal of 490900 is 9094.

It can be written as a sum of positive squares in 3 ways, for example, as 156816 + 334084 = 396^2 + 578^2 .

It is a congruent number.

It is an unprimeable number.

490900 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2355 + ... + 2554.

2⁴⁹⁰⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

490900 is an abundant number, since it is smaller than the sum of its proper divisors (574570).

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

490900 is a wasteful number, since it uses less digits than its factorization.

490900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 490900 is about 700.6425622241. The cubic root of 490900 is about 78.8855898758.

Adding to 490900 its reverse (9094), we get a palindrome (499994).

The spelling of 490900 in words is "four hundred ninety thousand, nine hundred".