12940508 has 36 divisors (see below), whose sum is σ = 26640432. Its totient is φ = 5483520.

The previous prime is 12940507. The next prime is 12940523. The reversal of 12940508 is 80504921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12940507) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 19868 + ... + 20508.

It is an arithmetic number, because the mean of its divisors is an integer number (740012).

Almost surely, 2^12940508 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 12940508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13320216).

12940508 is an abundant number, since it is smaller than the sum of its proper divisors (13699924).

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

12940508 is a wasteful number, since it uses less digits than its factorization.

12940508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12940508 is about 3597.2917590877. The cubic root of 12940508 is about 234.7742391979.

The spelling of 12940508 in words is "twelve million, nine hundred forty thousand, five hundred eight".