12857042 has 8 divisors (see below), whose sum is σ = 21038832. Its totient is φ = 5844100.

The previous prime is 12857021. The next prime is 12857057. The reversal of 12857042 is 24075821.

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 = 12856996 and 12857014.

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, 292184 + ... + 292227.

It is an arithmetic number, because the mean of its divisors is an integer number (2629854).

Almost surely, 2^12857042 is an apocalyptic number.

12857042 is a deficient number, since it is larger than the sum of its proper divisors (8181790).

12857042 is a wasteful number, since it uses less digits than its factorization.

12857042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584424.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12857042 is about 3585.6717641190. The cubic root of 12857042 is about 234.2683871141.

The spelling of 12857042 in words is "twelve million, eight hundred fifty-seven thousand, forty-two".