491236200 has 288 divisors, whose sum is σ = 2031120000. Its totient is φ = 103610880.

The previous prime is 491236189. The next prime is 491236217. The reversal of 491236200 is 2632194.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 162301 + ... + 165299.

It is an arithmetic number, because the mean of its divisors is an integer number (7052500).

Almost surely, 2^491236200 is an apocalyptic number.

491236200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491236200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015560000).

491236200 is an abundant number, since it is smaller than the sum of its proper divisors (1539883800).

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

491236200 is a wasteful number, since it uses less digits than its factorization.

491236200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 491236200 is about 22163.8489437191. The cubic root of 491236200 is about 789.0359441378.

Adding to 491236200 its reverse (2632194), we get a palindrome (493868394).

The spelling of 491236200 in words is "four hundred ninety-one million, two hundred thirty-six thousand, two hundred".