2491268 has 24 divisors (see below), whose sum is σ = 4901568. Its totient is φ = 1099296.

The previous prime is 2491259. The next prime is 2491289. The reversal of 2491268 is 8621942.

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 7 ways as a sum of consecutive naturals, for example, 155 + ... + 2237.

It is an arithmetic number, because the mean of its divisors is an integer number (204232).

2^2491268 is an apocalyptic number.

It is an amenable number.

2491268 is a deficient number, since it is larger than the sum of its proper divisors (2410300).

2491268 is a wasteful number, since it uses less digits than its factorization.

2491268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123 (or 2121 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 2491268 is about 1578.3751138433. The cubic root of 2491268 is about 135.5626812025.

The spelling of 2491268 in words is "two million, four hundred ninety-one thousand, two hundred sixty-eight".