2491486 has 16 divisors (see below), whose sum is σ = 3995136. Its totient is φ = 1161216.

The previous prime is 2491471. The next prime is 2491487. The reversal of 2491486 is 6841942.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4030 + ... + 4606.

It is an arithmetic number, because the mean of its divisors is an integer number (249696).

2^2491486 is an apocalyptic number.

2491486 is a deficient number, since it is larger than the sum of its proper divisors (1503650).

2491486 is a wasteful number, since it uses less digits than its factorization.

2491486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its digits is 13824, while the sum is 34.

The square root of 2491486 is about 1578.4441706947. Note that the first 3 decimals coincide. The cubic root of 2491486 is about 135.5666352535.

The spelling of 2491486 in words is "two million, four hundred ninety-one thousand, four hundred eighty-six".