490918 has 8 divisors (see below), whose sum is σ = 739440. Its totient is φ = 244440.

The previous prime is 490913. The next prime is 490921. The reversal of 490918 is 819094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 490918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463 + ... + 1093.

It is an arithmetic number, because the mean of its divisors is an integer number (92430).

2⁴⁹⁰⁹¹⁸ is an apocalyptic number.

490918 is a deficient number, since it is larger than the sum of its proper divisors (248522).

490918 is a wasteful number, since it uses less digits than its factorization.

490918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 490918 is about 700.6554074579. The cubic root of 490918 is about 78.8865540391.

The spelling of 490918 in words is "four hundred ninety thousand, nine hundred eighteen".