12315204 has 72 divisors (see below), whose sum is σ = 34358688. Its totient is φ = 3688320.

The previous prime is 12315187. The next prime is 12315209. The reversal of 12315204 is 40251321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12315209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54139 + ... + 54365.

It is an arithmetic number, because the mean of its divisors is an integer number (477204).

Almost surely, 2^12315204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12315204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17179344).

12315204 is an abundant number, since it is smaller than the sum of its proper divisors (22043484).

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

12315204 is a wasteful number, since it uses less digits than its factorization.

12315204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12315204 is about 3509.3024947986. The cubic root of 12315204 is about 230.9300963499.

Adding to 12315204 its reverse (40251321), we get a palindrome (52566525).

The spelling of 12315204 in words is "twelve million, three hundred fifteen thousand, two hundred four".