491806350 has 192 divisors, whose sum is σ = 1572756480. Its totient is φ = 110678400.

The previous prime is 491806327. The next prime is 491806361. The reversal of 491806350 is 53608194.

491806350 is a `hidden beast` number, since 4 + 9 + 18 + 0 + 635 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 670584 + ... + 671316.

It is an arithmetic number, because the mean of its divisors is an integer number (8191440).

Almost surely, 2^491806350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491806350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786378240).

491806350 is an abundant number, since it is smaller than the sum of its proper divisors (1080950130).

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

491806350 is a wasteful number, since it uses less digits than its factorization.

491806350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 491806350 is about 22176.7073750816. The cubic root of 491806350 is about 789.3410892051.

The spelling of 491806350 in words is "four hundred ninety-one million, eight hundred six thousand, three hundred fifty".