12128464 has 10 divisors (see below), whose sum is σ = 23498930. Its totient is φ = 6064224.

The previous prime is 12128443. The next prime is 12128477. The reversal of 12128464 is 46482121.

It can be written as a sum of positive squares in only one way, i.e., 7884864 + 4243600 = 2808^2 + 2060^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378999 + ... + 379030.

It is an arithmetic number, because the mean of its divisors is an integer number (2349893).

Almost surely, 2^12128464 is an apocalyptic number.

It is an amenable number.

12128464 is a deficient number, since it is larger than the sum of its proper divisors (11370466).

12128464 is an equidigital number, since it uses as much as digits as its factorization.

12128464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758037 (or 758031 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 12128464 is about 3482.5944351877. The cubic root of 12128464 is about 229.7569202508.

The spelling of 12128464 in words is "twelve million, one hundred twenty-eight thousand, four hundred sixty-four".