12808742 has 8 divisors (see below), whose sum is σ = 19262232. Its totient is φ = 6388000.

The previous prime is 12808739. The next prime is 12808751. The reversal of 12808742 is 24780821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12808699 and 12808708.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7184 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (2407779).

Almost surely, 2^12808742 is an apocalyptic number.

12808742 is a deficient number, since it is larger than the sum of its proper divisors (6453490).

12808742 is a wasteful number, since it uses less digits than its factorization.

12808742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16374.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 12808742 is about 3578.9302871109. The cubic root of 12808742 is about 233.9746606112.

The spelling of 12808742 in words is "twelve million, eight hundred eight thousand, seven hundred forty-two".