12075728 has 40 divisors (see below), whose sum is σ = 26968512. Its totient is φ = 5131008.

The previous prime is 12075677. The next prime is 12075731. The reversal of 12075728 is 82757021.

It is a junction number, because it is equal to n+sod(n) for n = 12075694 and 12075703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14951 + ... + 15737.

Almost surely, 2^12075728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12075728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13484256).

12075728 is an abundant number, since it is smaller than the sum of its proper divisors (14892784).

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

12075728 is a wasteful number, since it uses less digits than its factorization.

12075728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 12075728 is about 3475.0148201123. The cubic root of 12075728 is about 229.4234329887.

The spelling of 12075728 in words is "twelve million, seventy-five thousand, seven hundred twenty-eight".