491647200 has 216 divisors, whose sum is σ = 1760059224. Its totient is φ = 119116800.

The previous prime is 491647193. The next prime is 491647201. The reversal of 491647200 is 2746194.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491647201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 289554 + ... + 291246.

Almost surely, 2^491647200 is an apocalyptic number.

491647200 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 491647200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880029612).

491647200 is an abundant number, since it is smaller than the sum of its proper divisors (1268412024).

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

491647200 is a wasteful number, since it uses less digits than its factorization.

491647200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 491647200 is about 22173.1188604580. The cubic root of 491647200 is about 789.2559356431.

The spelling of 491647200 in words is "four hundred ninety-one million, six hundred forty-seven thousand, two hundred".