491094888 has 32 divisors (see below), whose sum is σ = 1228284000. Its totient is φ = 163625408.

The previous prime is 491094887. The next prime is 491094893. The reversal of 491094888 is 888490194.

It is a self number, because there is not a number n which added to its sum of digits gives 491094888.

It is not an unprimeable number, because it can be changed into a prime (491094887) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93763 + ... + 98861.

It is an arithmetic number, because the mean of its divisors is an integer number (38383875).

Almost surely, 2^491094888 is an apocalyptic number.

It is an amenable number.

491094888 is an abundant number, since it is smaller than the sum of its proper divisors (737189112).

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

491094888 is a wasteful number, since it uses less digits than its factorization.

491094888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121 (or 9117 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 491094888 is about 22160.6608204719. The cubic root of 491094888 is about 788.9602772518.

The spelling of 491094888 in words is "four hundred ninety-one million, ninety-four thousand, eight hundred eighty-eight".