490691730 has 16 divisors (see below), whose sum is σ = 1177660224. Its totient is φ = 130851120.

The previous prime is 490691713. The next prime is 490691741. The reversal of 490691730 is 37196094.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8178166 + ... + 8178225.

It is an arithmetic number, because the mean of its divisors is an integer number (73603764).

Almost surely, 2^490691730 is an apocalyptic number.

490691730 is an abundant number, since it is smaller than the sum of its proper divisors (686968494).

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

490691730 is a wasteful number, since it uses less digits than its factorization.

490691730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16356401.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 490691730 is about 22151.5626988256. The cubic root of 490691730 is about 788.7443225657.

The spelling of 490691730 in words is "four hundred ninety million, six hundred ninety-one thousand, seven hundred thirty".