12388356 has 48 divisors (see below), whose sum is σ = 32316480. Its totient is φ = 4104000.

The previous prime is 12388349. The next prime is 12388381. The reversal of 12388356 is 65388321.

It is a super-3 number, since 3×12388356³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12388356.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26880 + ... + 27336.

It is an arithmetic number, because the mean of its divisors is an integer number (673260).

Almost surely, 2^12388356 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 12388356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16158240).

12388356 is an abundant number, since it is smaller than the sum of its proper divisors (19928124).

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

12388356 is a wasteful number, since it uses less digits than its factorization.

12388356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 713 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 12388356 is about 3519.7096471158. The cubic root of 12388356 is about 231.3864336372.

The spelling of 12388356 in words is "twelve million, three hundred eighty-eight thousand, three hundred fifty-six".