490641 has 8 divisors (see below), whose sum is σ = 664224. Its totient is φ = 322080.

The previous prime is 490631. The next prime is 490643. The reversal of 490641 is 146094.

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

It is not a de Polignac number, because 490641 - 2⁶ = 490577 is a prime.

It is a super-3 number, since 3×490641³ = 354333949675334163, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (490643) 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 7 ways as a sum of consecutive naturals, for example, 1020 + ... + 1421.

It is an arithmetic number, because the mean of its divisors is an integer number (83028).

2⁴⁹⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

490641 is a deficient number, since it is larger than the sum of its proper divisors (173583).

490641 is a wasteful number, since it uses less digits than its factorization.

490641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 490641 is about 700.4577075027. The cubic root of 490641 is about 78.8717140273.

The spelling of 490641 in words is "four hundred ninety thousand, six hundred forty-one".