490471605 has 80 divisors (see below), whose sum is σ = 996885120. Its totient is φ = 228707712.

The previous prime is 490471603. The next prime is 490471609. The reversal of 490471605 is 506174094.

490471605 is a `hidden beast` number, since 4 + 9 + 0 + 47 + 1 + 605 = 666.

It is not a de Polignac number, because 490471605 - 2¹ = 490471603 is a prime.

It is a super-2 number, since 2×490471605² = 481124790622552050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 490471605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490471601) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 97584 + ... + 102486.

It is an arithmetic number, because the mean of its divisors is an integer number (12461064).

Almost surely, 2^490471605 is an apocalyptic number.

490471605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

490471605 is an abundant number, since it is smaller than the sum of its proper divisors (506413515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490471605 is a wasteful number, since it uses less digits than its factorization.

490471605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952 (or 4943 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 490471605 is about 22146.5935303830. The cubic root of 490471605 is about 788.6263609873.

The spelling of 490471605 in words is "four hundred ninety million, four hundred seventy-one thousand, six hundred five".