490635819 has 8 divisors (see below), whose sum is σ = 726867920. Its totient is φ = 327090528.

The previous prime is 490635763. The next prime is 490635823. The reversal of 490635819 is 918536094.

It is a happy number.

490635819 is a `hidden beast` number, since 4 + 9 + 0 + 63 + 581 + 9 = 666.

It is not a de Polignac number, because 490635819 - 2⁹ = 490635307 is a prime.

It is a super-2 number, since 2×490635819² = 481447013771601522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490635829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9085822 + ... + 9085875.

It is an arithmetic number, because the mean of its divisors is an integer number (90858490).

Almost surely, 2^490635819 is an apocalyptic number.

490635819 is a deficient number, since it is larger than the sum of its proper divisors (236232101).

490635819 is a wasteful number, since it uses less digits than its factorization.

490635819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18171706 (or 18171700 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 490635819 is about 22150.3006525871. The cubic root of 490635819 is about 788.7143640695.

The spelling of 490635819 in words is "four hundred ninety million, six hundred thirty-five thousand, eight hundred nineteen".