491194350 has 144 divisors (see below), whose sum is σ = 1373037120. Its totient is φ = 125798400.

The previous prime is 491194339. The next prime is 491194381. The reversal of 491194350 is 53491194.

It is a happy number.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 1457382 + ... + 1457718.

It is an arithmetic number, because the mean of its divisors is an integer number (9534980).

Almost surely, 2^491194350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491194350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686518560).

491194350 is an abundant number, since it is smaller than the sum of its proper divisors (881842770).

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

491194350 is a wasteful number, since it uses less digits than its factorization.

491194350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 491194350 is about 22162.9048186378. The cubic root of 491194350 is about 789.0135366605.

The spelling of 491194350 in words is "four hundred ninety-one million, one hundred ninety-four thousand, three hundred fifty".