12128296 has 8 divisors (see below), whose sum is σ = 22740570. Its totient is φ = 6064144.

The previous prime is 12128269. The next prime is 12128329. The reversal of 12128296 is 69282121.

It can be written as a sum of positive squares in only one way, i.e., 6320196 + 5808100 = 2514^2 + 2410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758011 + ... + 758026.

Almost surely, 2^12128296 is an apocalyptic number.

It is an amenable number.

12128296 is a deficient number, since it is larger than the sum of its proper divisors (10612274).

12128296 is a wasteful number, since it uses less digits than its factorization.

12128296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516043 (or 1516039 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 12128296 is about 3482.5703151552. The cubic root of 12128296 is about 229.7558594036.

The spelling of 12128296 in words is "twelve million, one hundred twenty-eight thousand, two hundred ninety-six".