12388338 has 24 divisors (see below), whose sum is σ = 26913276. Its totient is φ = 4118400.

The previous prime is 12388309. The next prime is 12388339. The reversal of 12388338 is 83388321.

It can be written as a sum of positive squares in 2 ways, for example, as 12131289 + 257049 = 3483^2 + 507^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12388339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8718 + ... + 10038.

Almost surely, 2^12388338 is an apocalyptic number.

12388338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12388338 is an abundant number, since it is smaller than the sum of its proper divisors (14524938).

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

12388338 is a wasteful number, since it uses less digits than its factorization.

12388338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850 (or 1847 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12388338 is about 3519.7070900858. The cubic root of 12388338 is about 231.3863215707.

The spelling of 12388338 in words is "twelve million, three hundred eighty-eight thousand, three hundred thirty-eight".