491324850 has 144 divisors (see below), whose sum is σ = 1415748672. Its totient is φ = 121841280.

The previous prime is 491324843. The next prime is 491324909. The reversal of 491324850 is 58423194.

491324850 is a `hidden beast` number, since 49 + 132 + 485 + 0 = 666.

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 71 ways as a sum of consecutive naturals, for example, 382309 + ... + 383591.

It is an arithmetic number, because the mean of its divisors is an integer number (9831588).

Almost surely, 2^491324850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491324850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707874336).

491324850 is an abundant number, since it is smaller than the sum of its proper divisors (924423822).

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

491324850 is a wasteful number, since it uses less digits than its factorization.

491324850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 491324850 is about 22165.8487317765. The cubic root of 491324850 is about 789.0834052364.

The spelling of 491324850 in words is "four hundred ninety-one million, three hundred twenty-four thousand, eight hundred fifty".