490785 has 8 divisors (see below), whose sum is σ = 785280. Its totient is φ = 261744.

The previous prime is 490783. The next prime is 490829. The reversal of 490785 is 587094.

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

It is not a de Polignac number, because 490785 - 2¹ = 490783 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490783) 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, 16345 + ... + 16374.

It is an arithmetic number, because the mean of its divisors is an integer number (98160).

2⁴⁹⁰⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

490785 is a deficient number, since it is larger than the sum of its proper divisors (294495).

490785 is a wasteful number, since it uses less digits than its factorization.

490785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32727.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 490785 is about 700.5604898936. The cubic root of 490785 is about 78.8794293873.

It can be divided in two parts, 490 and 785, that added together give a triangular number (1275 = T₅₀).

The spelling of 490785 in words is "four hundred ninety thousand, seven hundred eighty-five".