491227200 has 336 divisors, whose sum is σ = 1825508160. Its totient is φ = 128471040.

The previous prime is 491227171. The next prime is 491227229. The reversal of 491227200 is 2722194.

It is an interprime number because it is at equal distance from previous prime (491227171) and next prime (491227229).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3585532 + ... + 3585668.

It is an arithmetic number, because the mean of its divisors is an integer number (5433060).

Almost surely, 2^491227200 is an apocalyptic number.

491227200 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 491227200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (912754080).

491227200 is an abundant number, since it is smaller than the sum of its proper divisors (1334280960).

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

491227200 is a wasteful number, since it uses less digits than its factorization.

491227200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 491227200 is about 22163.6459094617. The cubic root of 491227200 is about 789.0311254329.

Adding to 491227200 its reverse (2722194), we get a palindrome (493949394).

The spelling of 491227200 in words is "four hundred ninety-one million, two hundred twenty-seven thousand, two hundred".