2491208 has 16 divisors (see below), whose sum is σ = 4707180. Its totient is φ = 1235968.

The previous prime is 2491207. The next prime is 2491211. The reversal of 2491208 is 8021942.

It can be written as a sum of positive squares in 2 ways, for example, as 2316484 + 174724 = 1522^2 + 418^2 .

It is a super-2 number, since 2×2491208² = 12412234598528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2491207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 41 + ... + 2232.

2^2491208 is an apocalyptic number.

It is an amenable number.

2491208 is a deficient number, since it is larger than the sum of its proper divisors (2215972).

2491208 is a wasteful number, since it uses less digits than its factorization.

2491208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2491208 is about 1578.3561068403. The cubic root of 2491208 is about 135.5615928910.

The spelling of 2491208 in words is "two million, four hundred ninety-one thousand, two hundred eight".