12128460 has 48 divisors (see below), whose sum is σ = 35750400. Its totient is φ = 3063744.

The previous prime is 12128443. The next prime is 12128477. The reversal of 12128460 is 6482121.

It is an interprime number because it is at equal distance from previous prime (12128443) and next prime (12128477).

It is a self number, because there is not a number n which added to its sum of digits gives 12128460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4180 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (744800).

Almost surely, 2^12128460 is an apocalyptic number.

12128460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12128460 is an abundant number, since it is smaller than the sum of its proper divisors (23621940).

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

12128460 is a wasteful number, since it uses less digits than its factorization.

12128460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10670 (or 10668 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12128460 is about 3482.5938609031. The cubic root of 12128460 is about 229.7568949927.

The spelling of 12128460 in words is "twelve million, one hundred twenty-eight thousand, four hundred sixty".