12839388 has 12 divisors (see below), whose sum is σ = 29958600. Its totient is φ = 4279792.

The previous prime is 12839381. The next prime is 12839401. The reversal of 12839388 is 88393821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12839381) 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, 534963 + ... + 534986.

It is an arithmetic number, because the mean of its divisors is an integer number (2496550).

Almost surely, 2^12839388 is an apocalyptic number.

It is an amenable number.

12839388 is an abundant number, since it is smaller than the sum of its proper divisors (17119212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12839388 is a wasteful number, since it uses less digits than its factorization.

12839388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069956 (or 1069954 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 12839388 is about 3583.2091761436. The cubic root of 12839388 is about 234.1611133857.

The spelling of 12839388 in words is "twelve million, eight hundred thirty-nine thousand, three hundred eighty-eight".