12128336 has 40 divisors (see below), whose sum is σ = 25873344. Its totient is φ = 5461760.

The previous prime is 12128329. The next prime is 12128339. The reversal of 12128336 is 63382121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128339) 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, 23861 + ... + 24363.

Almost surely, 2^12128336 is an apocalyptic number.

12128336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12128336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12936672).

12128336 is an abundant number, since it is smaller than the sum of its proper divisors (13745008).

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

12128336 is a wasteful number, since it uses less digits than its factorization.

12128336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 653 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 12128336 is about 3482.5760580352. The cubic root of 12128336 is about 229.7561119872.

The spelling of 12128336 in words is "twelve million, one hundred twenty-eight thousand, three hundred thirty-six".