12393642 has 16 divisors (see below), whose sum is σ = 25865280. Its totient is φ = 3951552.

The previous prime is 12393617. The next prime is 12393649. The reversal of 12393642 is 24639321.

It is not an unprimeable number, because it can be changed into a prime (12393649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44767 + ... + 45042.

It is an arithmetic number, because the mean of its divisors is an integer number (1616580).

Almost surely, 2^12393642 is an apocalyptic number.

12393642 is an abundant number, since it is smaller than the sum of its proper divisors (13471638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12393642 is a wasteful number, since it uses less digits than its factorization.

12393642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89837.

The product of its digits is 7776, while the sum is 30.

The square root of 12393642 is about 3520.4604812439. The cubic root of 12393642 is about 231.4193391270.

The spelling of 12393642 in words is "twelve million, three hundred ninety-three thousand, six hundred forty-two".