12396538 has 32 divisors (see below), whose sum is σ = 23442048. Its totient is φ = 4776000.

The previous prime is 12396533. The next prime is 12396557. The reversal of 12396538 is 83569321.

It is a junction number, because it is equal to n+sod(n) for n = 12396497 and 12396506.

It is not an unprimeable number, because it can be changed into a prime (12396533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15156 + ... + 15952.

It is an arithmetic number, because the mean of its divisors is an integer number (732564).

Almost surely, 2^12396538 is an apocalyptic number.

12396538 is a deficient number, since it is larger than the sum of its proper divisors (11045510).

12396538 is a wasteful number, since it uses less digits than its factorization.

12396538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918.

The product of its digits is 38880, while the sum is 37.

The square root of 12396538 is about 3520.8717670486. The cubic root of 12396538 is about 231.4373628366.

It can be divided in two parts, 1239 and 6538, that added together give a palindrome (7777).

The spelling of 12396538 in words is "twelve million, three hundred ninety-six thousand, five hundred thirty-eight".