490705408 has 40 divisors (see below), whose sum is σ = 1038144492. Its totient is φ = 230916096.

The previous prime is 490705373. The next prime is 490705447. The reversal of 490705408 is 804507094.

It can be written as a sum of positive squares in 2 ways, for example, as 475588864 + 15116544 = 21808^2 + 3888^2 .

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 3 ways as a sum of consecutive naturals, for example, 19485 + ... + 36892.

Almost surely, 2^490705408 is an apocalyptic number.

It is an amenable number.

490705408 is an abundant number, since it is smaller than the sum of its proper divisors (547439084).

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

490705408 is an equidigital number, since it uses as much as digits as its factorization.

490705408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56412 (or 56396 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 490705408 is about 22151.8714333575. The cubic root of 490705408 is about 788.7516512298.

The spelling of 490705408 in words is "four hundred ninety million, seven hundred five thousand, four hundred eight".