12388441 has 4 divisors (see below), whose sum is σ = 13341412. Its totient is φ = 11435472.

The previous prime is 12388417. The next prime is 12388459. The reversal of 12388441 is 14488321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14488321 = 23 ⋅629927.

It can be written as a sum of positive squares in 2 ways, for example, as 4665600 + 7722841 = 2160^2 + 2779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12388441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12388471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476466 + ... + 476491.

It is an arithmetic number, because the mean of its divisors is an integer number (3335353).

Almost surely, 2^12388441 is an apocalyptic number.

It is an amenable number.

12388441 is a deficient number, since it is larger than the sum of its proper divisors (952971).

12388441 is an equidigital number, since it uses as much as digits as its factorization.

12388441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952970.

The product of its digits is 6144, while the sum is 31.

The square root of 12388441 is about 3519.7217219547. The cubic root of 12388441 is about 231.3869628385.

The spelling of 12388441 in words is "twelve million, three hundred eighty-eight thousand, four hundred forty-one".