490803565 has 32 divisors (see below), whose sum is σ = 685301760. Its totient is φ = 330511104.

The previous prime is 490803559. The next prime is 490803581. The reversal of 490803565 is 565308094.

It is not a de Polignac number, because 490803565 - 2¹³ = 490795373 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 483999 + ... + 485011.

It is an arithmetic number, because the mean of its divisors is an integer number (21415680).

Almost surely, 2^490803565 is an apocalyptic number.

It is an amenable number.

490803565 is a deficient number, since it is larger than the sum of its proper divisors (194498195).

490803565 is a wasteful number, since it uses less digits than its factorization.

490803565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 490803565 is about 22154.0868690181. The cubic root of 490803565 is about 788.8042396958.

The spelling of 490803565 in words is "four hundred ninety million, eight hundred three thousand, five hundred sixty-five".