12427942 has 8 divisors (see below), whose sum is σ = 18737136. Its totient is φ = 6182232.

The previous prime is 12427939. The next prime is 12427951. The reversal of 12427942 is 24972421.

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

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 3 ways as a sum of consecutive naturals, for example, 15378 + ... + 16165.

It is an arithmetic number, because the mean of its divisors is an integer number (2342142).

Almost surely, 2^12427942 is an apocalyptic number.

12427942 is a deficient number, since it is larger than the sum of its proper divisors (6309194).

12427942 is a wasteful number, since it uses less digits than its factorization.

12427942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31742.

The product of its digits is 8064, while the sum is 31.

The square root of 12427942 is about 3525.3286371628. The cubic root of 12427942 is about 231.6326305316.

The spelling of 12427942 in words is "twelve million, four hundred twenty-seven thousand, nine hundred forty-two".