490518 has 48 divisors (see below), whose sum is σ = 1291680. Its totient is φ = 131328.

The previous prime is 490499. The next prime is 490519. The reversal of 490518 is 815094.

490518 is a modest number, since divided by 518 gives 490 as remainder.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 490491 and 490500.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 490518.

It is not an unprimeable number, because it can be changed into a prime (490519) 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 23 ways as a sum of consecutive naturals, for example, 2028 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (26910).

2⁴⁹⁰⁵¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645840).

490518 is an abundant number, since it is smaller than the sum of its proper divisors (801162).

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

490518 is a wasteful number, since it uses less digits than its factorization.

490518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 490518 is about 700.3699022659. The cubic root of 490518 is about 78.8651226284.

Adding to 490518 its sum of digits (27), we get a triangular number (490545 = T₉₉₀).

The spelling of 490518 in words is "four hundred ninety thousand, five hundred eighteen".