12443642 has 8 divisors (see below), whose sum is σ = 18944256. Its totient is φ = 6128892.

The previous prime is 12443633. The next prime is 12443647. The reversal of 12443642 is 24634421.

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

It is not an unprimeable number, because it can be changed into a prime (12443647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46298 + ... + 46565.

It is an arithmetic number, because the mean of its divisors is an integer number (2368032).

Almost surely, 2^12443642 is an apocalyptic number.

12443642 is a deficient number, since it is larger than the sum of its proper divisors (6500614).

12443642 is an equidigital number, since it uses as much as digits as its factorization.

12443642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92932.

The product of its digits is 4608, while the sum is 26.

The square root of 12443642 is about 3527.5546771099. The cubic root of 12443642 is about 231.7301286266.

The spelling of 12443642 in words is "twelve million, four hundred forty-three thousand, six hundred forty-two".