2490636 has 48 divisors (see below), whose sum is σ = 6380640. Its totient is φ = 752640.

The previous prime is 2490623. The next prime is 2490637. The reversal of 2490636 is 6360942.

It is not an unprimeable number, because it can be changed into a prime (2490637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5706 + ... + 6126.

It is an arithmetic number, because the mean of its divisors is an integer number (132930).

2^2490636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2490636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3190320).

2490636 is an abundant number, since it is smaller than the sum of its proper divisors (3890004).

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

2490636 is a wasteful number, since it uses less digits than its factorization.

2490636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 2490636 is about 1578.1748952508. The cubic root of 2490636 is about 135.5512167781.

It can be divided in two parts, 24906 and 36, that added together give a palindrome (24942).

The spelling of 2490636 in words is "two million, four hundred ninety thousand, six hundred thirty-six".