491850 has 36 divisors (see below), whose sum is σ = 1322646. Its totient is φ = 131040.

The previous prime is 491837. The next prime is 491851. The reversal of 491850 is 58194.

It can be written as a sum of positive squares in 3 ways, for example, as 471969 + 19881 = 687^2 + 141^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491850.

It is not an unprimeable number, because it can be changed into a prime (491851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 97 + ... + 996.

2⁴⁹¹⁸⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661323).

491850 is an abundant number, since it is smaller than the sum of its proper divisors (830796).

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

491850 is a wasteful number, since it uses less digits than its factorization.

491850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 491850 is about 701.3201836537. The cubic root of 491850 is about 78.9364441025.

The spelling of 491850 in words is "four hundred ninety-one thousand, eight hundred fifty".