12438528 has 44 divisors (see below), whose sum is σ = 33161400. Its totient is φ = 4145152.

The previous prime is 12438523. The next prime is 12438529. The reversal of 12438528 is 82583421.

It is not an unprimeable number, because it can be changed into a prime (12438523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048 + ... + 5096.

Almost surely, 2^12438528 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 12438528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16580700).

12438528 is an abundant number, since it is smaller than the sum of its proper divisors (20722872).

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

12438528 is an equidigital number, since it uses as much as digits as its factorization.

12438528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072 (or 4054 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 12438528 is about 3526.8297378808. The cubic root of 12438528 is about 231.6983793402.

The spelling of 12438528 in words is "twelve million, four hundred thirty-eight thousand, five hundred twenty-eight".