12940704 has 144 divisors (see below), whose sum is σ = 43243200. Its totient is φ = 3669120.

The previous prime is 12940703. The next prime is 12940717. The reversal of 12940704 is 40704921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (12940703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98719 + ... + 98849.

It is an arithmetic number, because the mean of its divisors is an integer number (300300).

Almost surely, 2^12940704 is an apocalyptic number.

12940704 is a gapful number since it is divisible by the number (14) 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 12940704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21621600).

12940704 is an abundant number, since it is smaller than the sum of its proper divisors (30302496).

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

12940704 is a wasteful number, since it uses less digits than its factorization.

12940704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12940704 is about 3597.3190017011. The cubic root of 12940704 is about 234.7754245073.

The spelling of 12940704 in words is "twelve million, nine hundred forty thousand, seven hundred four".