12316238 has 16 divisors (see below), whose sum is σ = 20805120. Its totient is φ = 5417400.

The previous prime is 12316231. The next prime is 12316259. The reversal of 12316238 is 83261321.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12316231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8348 + ... + 9711.

It is an arithmetic number, because the mean of its divisors is an integer number (1300320).

Almost surely, 2^12316238 is an apocalyptic number.

12316238 is a deficient number, since it is larger than the sum of its proper divisors (8488882).

12316238 is a wasteful number, since it uses less digits than its factorization.

12316238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18103.

The product of its digits is 1728, while the sum is 26.

The square root of 12316238 is about 3509.4498144296. The cubic root of 12316238 is about 230.9365592294.

Adding to 12316238 its reverse (83261321), we get a palindrome (95577559).

It can be divided in two parts, 123 and 16238, that added together give a palindrome (16361).

The spelling of 12316238 in words is "twelve million, three hundred sixteen thousand, two hundred thirty-eight".