491000106 has 16 divisors (see below), whose sum is σ = 987090624. Its totient is φ = 162818304.

The previous prime is 491000099. The next prime is 491000119. The reversal of 491000106 is 601000194.

It is a super-2 number, since 2×491000106² = 482162208184022472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210846 + ... + 213161.

It is an arithmetic number, because the mean of its divisors is an integer number (61693164).

Almost surely, 2^491000106 is an apocalyptic number.

491000106 is an abundant number, since it is smaller than the sum of its proper divisors (496090518).

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

491000106 is a wasteful number, since it uses less digits than its factorization.

491000106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424205.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 491000106 is about 22158.5221980167. The cubic root of 491000106 is about 788.9095171739.

The spelling of 491000106 in words is "four hundred ninety-one million, one hundred six", and thus it is an aban number.