490000 has 75 divisors (see below), whose sum is σ = 1380027. Its totient is φ = 168000.

The previous prime is 489989. The next prime is 490001. The reversal of 490000 is 94.

It is a happy number.

The square root of 490000 is 700.

It is a perfect power (a square), and thus also a powerful number.

490000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38416 + 451584 = 196^2 + 672^2 .

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (490001) by changing a digit.

490000 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 14 ways as a sum of consecutive naturals, for example, 69997 + ... + 70003.

2⁴⁹⁰⁰⁰⁰ is an apocalyptic number.

490000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

490000 is the 700-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490000

490000 is an abundant number, since it is smaller than the sum of its proper divisors (890027).

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

490000 is an equidigital number, since it uses as much as digits as its factorization.

490000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The cubic root of 490000 is about 78.8373516311.

Multiplying 490000 by its product of nonzero digits (36), we get a square (17640000 = 4200²).

Adding to 490000 its reverse (94), we get a palindrome (490094).

It can be divided in two parts, 4 and 90000, that multiplied together give a square (360000 = 600²).

The spelling of 490000 in words is "four hundred ninety thousand".