12338381 has 4 divisors (see below), whose sum is σ = 13460064. Its totient is φ = 11216700.

The previous prime is 12338371. The next prime is 12338383. The reversal of 12338381 is 18383321.

12338381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18383321 = 11 ⋅1671211.

It is not a de Polignac number, because 12338381 - 2⁶ = 12338317 is a prime.

It is a super-2 number, since 2×12338381² = 304471291402322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12338383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560825 + ... + 560846.

It is an arithmetic number, because the mean of its divisors is an integer number (3365016).

Almost surely, 2^12338381 is an apocalyptic number.

12338381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12338381 is a deficient number, since it is larger than the sum of its proper divisors (1121683).

12338381 is a wasteful number, since it uses less digits than its factorization.

12338381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121682.

The product of its digits is 3456, while the sum is 29.

The square root of 12338381 is about 3512.6031657447. The cubic root of 12338381 is about 231.0748743746.

The spelling of 12338381 in words is "twelve million, three hundred thirty-eight thousand, three hundred eighty-one".