2491450400 has 36 divisors (see below), whose sum is σ = 6082255242. Its totient is φ = 996579840.

The previous prime is 2491450369. The next prime is 2491450433. The reversal of 2491450400 is 40541942.

It can be written as a sum of positive squares in 3 ways, for example, as 1342782736 + 1148667664 = 36644^2 + 33892^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1556357 + ... + 1557956.

Almost surely, 2^2491450400 is an apocalyptic number.

2491450400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2491450400 is an abundant number, since it is smaller than the sum of its proper divisors (3590804842).

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

2491450400 is a wasteful number, since it uses less digits than its factorization.

2491450400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114333 (or 3114320 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2491450400 is about 49914.4307790843. The cubic root of 2491450400 is about 1355.6598956185.

The spelling of 2491450400 in words is "two billion, four hundred ninety-one million, four hundred fifty thousand, four hundred".