12386642 has 8 divisors (see below), whose sum is σ = 19672956. Its totient is φ = 5828992.

The previous prime is 12386611. The next prime is 12386657. The reversal of 12386642 is 24668321.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 143641 = 3499^2 + 379^2 .

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 = 12386599 and 12386608.

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, 182123 + ... + 182190.

Almost surely, 2^12386642 is an apocalyptic number.

12386642 is a deficient number, since it is larger than the sum of its proper divisors (7286314).

12386642 is a wasteful number, since it uses less digits than its factorization.

12386642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364332.

The product of its digits is 13824, while the sum is 32.

The square root of 12386642 is about 3519.4661526999. The cubic root of 12386642 is about 231.3757619323.

The spelling of 12386642 in words is "twelve million, three hundred eighty-six thousand, six hundred forty-two".