2491043200 has 96 divisors (see below), whose sum is σ = 6173109360. Its totient is φ = 993269760.

The previous prime is 2491043179. The next prime is 2491043209. The reversal of 2491043200 is 23401942.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491043209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1192557 + ... + 1194643.

Almost surely, 2^2491043200 is an apocalyptic number.

2491043200 is a gapful number since it is divisible by the number (20) 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 2491043200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3086554680).

2491043200 is an abundant number, since it is smaller than the sum of its proper divisors (3682066160).

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

2491043200 is a wasteful number, since it uses less digits than its factorization.

2491043200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2491043200 is about 49910.3516317006. The cubic root of 2491043200 is about 1355.5860357246.

The spelling of 2491043200 in words is "two billion, four hundred ninety-one million, forty-three thousand, two hundred".