12446540 has 24 divisors (see below), whose sum is σ = 26695872. Its totient is φ = 4872320.

The previous prime is 12446537. The next prime is 12446549. The reversal of 12446540 is 4564421.

It is not an unprimeable number, because it can be changed into a prime (12446549) 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, 5681 + ... + 7560.

It is an arithmetic number, because the mean of its divisors is an integer number (1112328).

Almost surely, 2^12446540 is an apocalyptic number.

12446540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12446540 is an abundant number, since it is smaller than the sum of its proper divisors (14249332).

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

12446540 is a wasteful number, since it uses less digits than its factorization.

12446540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13297 (or 13295 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 12446540 is about 3527.9654193317. The cubic root of 12446540 is about 231.7481164414.

It can be divided in two parts, 124 and 46540, that added together give a palindrome (46664).

The spelling of 12446540 in words is "twelve million, four hundred forty-six thousand, five hundred forty".