12942740 has 24 divisors (see below), whose sum is σ = 27317472. Its totient is φ = 5150880.

The previous prime is 12942739. The next prime is 12942751. The reversal of 12942740 is 4724921.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2687 + ... + 5753.

It is an arithmetic number, because the mean of its divisors is an integer number (1138228).

Almost surely, 2^12942740 is an apocalyptic number.

12942740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12942740 is an abundant number, since it is smaller than the sum of its proper divisors (14374732).

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

12942740 is a wasteful number, since it uses less digits than its factorization.

12942740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287 (or 3285 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12942740 is about 3597.6019790966. The cubic root of 12942740 is about 234.7877365036.

The spelling of 12942740 in words is "twelve million, nine hundred forty-two thousand, seven hundred forty".