12440782 has 12 divisors (see below), whose sum is σ = 19696176. Its totient is φ = 5892660.

The previous prime is 12440741. The next prime is 12440809. The reversal of 12440782 is 28704421.

It is a self number, because there is not a number n which added to its sum of digits gives 12440782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7894 + ... + 9337.

It is an arithmetic number, because the mean of its divisors is an integer number (1641348).

Almost surely, 2^12440782 is an apocalyptic number.

12440782 is a deficient number, since it is larger than the sum of its proper divisors (7255394).

12440782 is a wasteful number, since it uses less digits than its factorization.

12440782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17271 (or 17252 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 12440782 is about 3527.1492738471. The cubic root of 12440782 is about 231.7123739384.

The spelling of 12440782 in words is "twelve million, four hundred forty thousand, seven hundred eighty-two".