490636 has 12 divisors (see below), whose sum is σ = 896112. Its totient is φ = 234608.

The previous prime is 490631. The next prime is 490643. The reversal of 490636 is 636094.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575 + ... + 2758.

It is an arithmetic number, because the mean of its divisors is an integer number (74676).

2⁴⁹⁰⁶³⁶ is an apocalyptic number.

490636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

490636 is a deficient number, since it is larger than the sum of its proper divisors (405476).

490636 is a wasteful number, since it uses less digits than its factorization.

490636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360 (or 5358 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 490636 is about 700.4541383988. The cubic root of 490636 is about 78.8714461057.

The spelling of 490636 in words is "four hundred ninety thousand, six hundred thirty-six".