490641273 has 8 divisors (see below), whose sum is σ = 726876000. Its totient is φ = 327094164.

The previous prime is 490641269. The next prime is 490641289. The reversal of 490641273 is 372146094.

490641273 is a `hidden beast` number, since 4 + 9 + 0 + 641 + 2 + 7 + 3 = 666.

It is not a de Polignac number, because 490641273 - 2² = 490641269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490601273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9085923 + ... + 9085976.

It is an arithmetic number, because the mean of its divisors is an integer number (90859500).

Almost surely, 2^490641273 is an apocalyptic number.

It is an amenable number.

490641273 is a deficient number, since it is larger than the sum of its proper divisors (236234727).

490641273 is a wasteful number, since it uses less digits than its factorization.

490641273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18171908 (or 18171902 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 490641273 is about 22150.4237656980. The cubic root of 490641273 is about 788.7172865577.

The spelling of 490641273 in words is "four hundred ninety million, six hundred forty-one thousand, two hundred seventy-three".