491182026 has 16 divisors (see below), whose sum is σ = 994800000. Its totient is φ = 161654688.

The previous prime is 491181983. The next prime is 491182051. The reversal of 491182026 is 620281194.

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 in 7 ways as a sum of consecutive naturals, for example, 517651 + ... + 518598.

It is an arithmetic number, because the mean of its divisors is an integer number (62175000).

Almost surely, 2^491182026 is an apocalyptic number.

491182026 is an abundant number, since it is smaller than the sum of its proper divisors (503617974).

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

491182026 is a wasteful number, since it uses less digits than its factorization.

491182026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036333.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 491182026 is about 22162.6267847473. The cubic root of 491182026 is about 789.0069378576.

The spelling of 491182026 in words is "four hundred ninety-one million, one hundred eighty-two thousand, twenty-six".