12388236 has 48 divisors (see below), whose sum is σ = 33304320. Its totient is φ = 3510720.

The previous prime is 12388231. The next prime is 12388241. The reversal of 12388236 is 63288321.

12388236 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12388231) and next prime (12388241).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

12388236 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 12388197 and 12388206.

It is not an unprimeable number, because it can be changed into a prime (12388231) 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, 11146 + ... + 12206.

It is an arithmetic number, because the mean of its divisors is an integer number (693840).

Almost surely, 2^12388236 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 12388236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16652160).

12388236 is an abundant number, since it is smaller than the sum of its proper divisors (20916084).

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

12388236 is a wasteful number, since it uses less digits than its factorization.

12388236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1212 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 12388236 is about 3519.6926002138. The cubic root of 12388236 is about 231.3856865254.

The spelling of 12388236 in words is "twelve million, three hundred eighty-eight thousand, two hundred thirty-six".