491910044 has 6 divisors (see below), whose sum is σ = 860842584. Its totient is φ = 245955020.

The previous prime is 491909987. The next prime is 491910053. The reversal of 491910044 is 440019194.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 61488752 + ... + 61488759.

It is an arithmetic number, because the mean of its divisors is an integer number (143473764).

Almost surely, 2^491910044 is an apocalyptic number.

It is an amenable number.

491910044 is a deficient number, since it is larger than the sum of its proper divisors (368932540).

491910044 is a wasteful number, since it uses less digits than its factorization.

491910044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122977515 (or 122977513 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 491910044 is about 22179.0451552811. The cubic root of 491910044 is about 789.3965610272.

The spelling of 491910044 in words is "four hundred ninety-one million, nine hundred ten thousand, forty-four".