2491036 has 12 divisors (see below), whose sum is σ = 4500160. Its totient is φ = 1205280.

The previous prime is 2491031. The next prime is 2491043. The reversal of 2491036 is 6301942.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2491036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9921 + ... + 10168.

2^2491036 is an apocalyptic number.

It is an amenable number.

2491036 is a deficient number, since it is larger than the sum of its proper divisors (2009124).

2491036 is a wasteful number, since it uses less digits than its factorization.

2491036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20124 (or 20122 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2491036 is about 1578.3016188296. The cubic root of 2491036 is about 135.5584729682.

Adding to 2491036 its reverse (6301942), we get a palindrome (8792978).

The spelling of 2491036 in words is "two million, four hundred ninety-one thousand, thirty-six".