12442807 has 4 divisors (see below), whose sum is σ = 13399960. Its totient is φ = 11485656.

The previous prime is 12442763. The next prime is 12442813. The reversal of 12442807 is 70824421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12442807 - 2¹⁵ = 12410039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478557 + ... + 478582.

It is an arithmetic number, because the mean of its divisors is an integer number (3349990).

Almost surely, 2^12442807 is an apocalyptic number.

12442807 is a deficient number, since it is larger than the sum of its proper divisors (957153).

12442807 is an equidigital number, since it uses as much as digits as its factorization.

12442807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957152.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 12442807 is about 3527.4363211829. The cubic root of 12442807 is about 231.7249452838.

The spelling of 12442807 in words is "twelve million, four hundred forty-two thousand, eight hundred seven".