491498982 has 48 divisors (see below), whose sum is σ = 1182721680. Its totient is φ = 151227648.

The previous prime is 491498977. The next prime is 491498993. The reversal of 491498982 is 289894194.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17803 + ... + 36054.

It is an arithmetic number, because the mean of its divisors is an integer number (24640035).

Almost surely, 2^491498982 is an apocalyptic number.

491498982 is an abundant number, since it is smaller than the sum of its proper divisors (691222698).

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

491498982 is a wasteful number, since it uses less digits than its factorization.

491498982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53894 (or 53875 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 491498982 is about 22169.7763182221. The cubic root of 491498982 is about 789.1766147440.

The spelling of 491498982 in words is "four hundred ninety-one million, four hundred ninety-eight thousand, nine hundred eighty-two".