12128298 has 64 divisors (see below), whose sum is σ = 30293760. Its totient is φ = 3151872.

The previous prime is 12128269. The next prime is 12128329. The reversal of 12128298 is 89282121.

It is a super-2 number, since 2×12128298² = 294191224753608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52848 + ... + 53076.

It is an arithmetic number, because the mean of its divisors is an integer number (473340).

Almost surely, 2^12128298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12128298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15146880).

12128298 is an abundant number, since it is smaller than the sum of its proper divisors (18165462).

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

12128298 is a wasteful number, since it uses less digits than its factorization.

12128298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351.

The product of its digits is 4608, while the sum is 33.

The square root of 12128298 is about 3482.5706022994. The cubic root of 12128298 is about 229.7558720328.

The spelling of 12128298 in words is "twelve million, one hundred twenty-eight thousand, two hundred ninety-eight".