12388272 has 40 divisors (see below), whose sum is σ = 34466544. Its totient is φ = 3811584.

The previous prime is 12388267. The next prime is 12388279. The reversal of 12388272 is 27288321.

12388272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12388279) 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, 9303 + ... + 10550.

Almost surely, 2^12388272 is an apocalyptic number.

12388272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12388272 is an abundant number, since it is smaller than the sum of its proper divisors (22078272).

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

12388272 is a wasteful number, since it uses less digits than its factorization.

12388272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19877 (or 19871 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 12388272 is about 3519.6977142931. The cubic root of 12388272 is about 231.3859106594.

The spelling of 12388272 in words is "twelve million, three hundred eighty-eight thousand, two hundred seventy-two".