12959940 has 96 divisors (see below), whose sum is σ = 42255360. Its totient is φ = 2906496.

The previous prime is 12959939. The next prime is 12959941. The reversal of 12959940 is 4995921.

It is an interprime number because it is at equal distance from previous prime (12959939) and next prime (12959941).

It is not an unprimeable number, because it can be changed into a prime (12959941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24519 + ... + 25041.

It is an arithmetic number, because the mean of its divisors is an integer number (440160).

Almost surely, 2^12959940 is an apocalyptic number.

12959940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12959940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21127680).

12959940 is an abundant number, since it is smaller than the sum of its proper divisors (29295420).

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

12959940 is a wasteful number, since it uses less digits than its factorization.

12959940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 12959940 is about 3599.9916666570. The cubic root of 12959940 is about 234.8916959818.

The spelling of 12959940 in words is "twelve million, nine hundred fifty-nine thousand, nine hundred forty".