2440636 has 12 divisors (see below), whose sum is σ = 4659480. Its totient is φ = 1109360.

The previous prime is 2440621. The next prime is 2440643. The reversal of 2440636 is 6360442.

It is a self number, because there is not a number n which added to its sum of digits gives 2440636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27691 + ... + 27778.

It is an arithmetic number, because the mean of its divisors is an integer number (388290).

2^2440636 is an apocalyptic number.

It is an amenable number.

2440636 is a deficient number, since it is larger than the sum of its proper divisors (2218844).

2440636 is a wasteful number, since it uses less digits than its factorization.

2440636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55484 (or 55482 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2440636 is about 1562.2535005562. The cubic root of 2440636 is about 134.6380059692.

It can be divided in two parts, 24406 and 36, that added together give a palindrome (24442).

The spelling of 2440636 in words is "two million, four hundred forty thousand, six hundred thirty-six".