12838438 has 8 divisors (see below), whose sum is σ = 19282032. Its totient is φ = 6411096.

The previous prime is 12838429. The next prime is 12838477. The reversal of 12838438 is 83483821.

12838438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×12838438³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12838397 and 12838406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845 + ... + 5392.

It is an arithmetic number, because the mean of its divisors is an integer number (2410254).

Almost surely, 2^12838438 is an apocalyptic number.

12838438 is a deficient number, since it is larger than the sum of its proper divisors (6443594).

12838438 is an equidigital number, since it uses as much as digits as its factorization.

12838438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126.

The product of its digits is 36864, while the sum is 37.

The square root of 12838438 is about 3583.0766109588. The cubic root of 12838438 is about 234.1553379665.

The spelling of 12838438 in words is "twelve million, eight hundred thirty-eight thousand, four hundred thirty-eight".