491847426 has 48 divisors (see below), whose sum is σ = 1257205248. Its totient is φ = 135993600.

The previous prime is 491847407. The next prime is 491847431. The reversal of 491847426 is 624748194.

491847426 is a `hidden beast` number, since 49 + 184 + 7 + 426 = 666.

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, 59055 + ... + 66866.

It is an arithmetic number, because the mean of its divisors is an integer number (26191776).

Almost surely, 2^491847426 is an apocalyptic number.

491847426 is an abundant number, since it is smaller than the sum of its proper divisors (765357822).

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

491847426 is a wasteful number, since it uses less digits than its factorization.

491847426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125967 (or 125964 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 491847426 is about 22177.6334625676. The cubic root of 491847426 is about 789.3630640278.

The spelling of 491847426 in words is "four hundred ninety-one million, eight hundred forty-seven thousand, four hundred twenty-six".