490442577309 has 12 divisors (see below), whose sum is σ = 708492726396. Its totient is φ = 326926793472.

The previous prime is 490442577301. The next prime is 490442577329. The reversal of 490442577309 is 903775244094.

490442577309 is a `hidden beast` number, since 49 + 0 + 44 + 257 + 7 + 309 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 277549848900 + 212892728409 = 526830^2 + 461403^2 .

It is not a de Polignac number, because 490442577309 - 2³ = 490442577301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490442577301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2821314 + ... + 2990099.

It is an arithmetic number, because the mean of its divisors is an integer number (59041060533).

Almost surely, 2^490442577309 is an apocalyptic number.

It is an amenable number.

490442577309 is a deficient number, since it is larger than the sum of its proper divisors (218050149087).

490442577309 is a wasteful number, since it uses less digits than its factorization.

490442577309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820796 (or 5820793 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 490442577309 in words is "four hundred ninety billion, four hundred forty-two million, five hundred seventy-seven thousand, three hundred nine".