12128244 has 12 divisors (see below), whose sum is σ = 28299264. Its totient is φ = 4042744.

The previous prime is 12128243. The next prime is 12128257. The reversal of 12128244 is 44282121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128243) 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, 505332 + ... + 505355.

It is an arithmetic number, because the mean of its divisors is an integer number (2358272).

Almost surely, 2^12128244 is an apocalyptic number.

It is an amenable number.

12128244 is an abundant number, since it is smaller than the sum of its proper divisors (16171020).

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

12128244 is a wasteful number, since it uses less digits than its factorization.

12128244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010694 (or 1010692 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 12128244 is about 3482.5628493970. The cubic root of 12128244 is about 229.7555310442.

The spelling of 12128244 in words is "twelve million, one hundred twenty-eight thousand, two hundred forty-four".