490651 has 8 divisors (see below), whose sum is σ = 580320. Its totient is φ = 405888.

The previous prime is 490643. The next prime is 490661. The reversal of 490651 is 156094.

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

It is not a de Polignac number, because 490651 - 2³ = 490643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490631) 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 7 ways as a sum of consecutive naturals, for example, 1006 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2⁴⁹⁰⁶⁵¹ is an apocalyptic number.

490651 is a deficient number, since it is larger than the sum of its proper divisors (89669).

490651 is a wasteful number, since it uses less digits than its factorization.

490651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 490651 is about 700.4648456561. The cubic root of 490651 is about 78.8722498650.

The spelling of 490651 in words is "four hundred ninety thousand, six hundred fifty-one".