490307865 has 8 divisors (see below), whose sum is σ = 784492608. Its totient is φ = 261497520.

The previous prime is 490307827. The next prime is 490307899. The reversal of 490307865 is 568703094.

It is a happy number.

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

It is not a de Polignac number, because 490307865 - 2¹⁰ = 490306841 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 16343581 + ... + 16343610.

It is an arithmetic number, because the mean of its divisors is an integer number (98061576).

Almost surely, 2^490307865 is an apocalyptic number.

It is an amenable number.

490307865 is a deficient number, since it is larger than the sum of its proper divisors (294184743).

490307865 is a wasteful number, since it uses less digits than its factorization.

490307865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32687199.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 490307865 is about 22142.8964907484. The cubic root of 490307865 is about 788.5385923640.

The spelling of 490307865 in words is "four hundred ninety million, three hundred seven thousand, eight hundred sixty-five".