491728882 has 16 divisors (see below), whose sum is σ = 761935104. Its totient is φ = 237762000.

The previous prime is 491728871. The next prime is 491728883. The reversal of 491728882 is 288827194.

It is not an unprimeable number, because it can be changed into a prime (491728883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145957 + ... + 149287.

It is an arithmetic number, because the mean of its divisors is an integer number (47620944).

Almost surely, 2^491728882 is an apocalyptic number.

491728882 is a deficient number, since it is larger than the sum of its proper divisors (270206222).

491728882 is a wasteful number, since it uses less digits than its factorization.

491728882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745.

The product of its digits is 516096, while the sum is 49.

The square root of 491728882 is about 22174.9606989505. The cubic root of 491728882 is about 789.2996420743.

The spelling of 491728882 in words is "four hundred ninety-one million, seven hundred twenty-eight thousand, eight hundred eighty-two".