491827072 has 64 divisors (see below), whose sum is σ = 1075944960. Its totient is φ = 222082560.

The previous prime is 491827067. The next prime is 491827087. The reversal of 491827072 is 270728194.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

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, 228433 + ... + 230575.

It is an arithmetic number, because the mean of its divisors is an integer number (16811640).

Almost surely, 2^491827072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491827072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537972480).

491827072 is an abundant number, since it is smaller than the sum of its proper divisors (584117888).

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

491827072 is a wasteful number, since it uses less digits than its factorization.

491827072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 491827072 is about 22177.1745720685. The cubic root of 491827072 is about 789.3521752056.

The spelling of 491827072 in words is "four hundred ninety-one million, eight hundred twenty-seven thousand, seventy-two".