12668042 has 8 divisors (see below), whose sum is σ = 19070532. Its totient is φ = 6311200.

The previous prime is 12668039. The next prime is 12668059. The reversal of 12668042 is 24086621.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 758641 = 3451^2 + 871^2 .

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

It is a super-2 number, since 2×12668042² = 320958576227528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12667996 and 12668014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10709 + ... + 11832.

Almost surely, 2^12668042 is an apocalyptic number.

12668042 is a deficient number, since it is larger than the sum of its proper divisors (6402490).

12668042 is a wasteful number, since it uses less digits than its factorization.

12668042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12668042 is about 3559.2192964188. The cubic root of 12668042 is about 233.1147917483.

The spelling of 12668042 in words is "twelve million, six hundred sixty-eight thousand, forty-two".