12283728 has 40 divisors (see below), whose sum is σ = 33405600. Its totient is φ = 3878784.

The previous prime is 12283727. The next prime is 12283759. The reversal of 12283728 is 82738221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12283727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5823 + ... + 7646.

It is an arithmetic number, because the mean of its divisors is an integer number (835140).

Almost surely, 2^12283728 is an apocalyptic number.

It is an amenable number.

12283728 is an abundant number, since it is smaller than the sum of its proper divisors (21121872).

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

12283728 is a wasteful number, since it uses less digits than its factorization.

12283728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499 (or 13493 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 12283728 is about 3504.8149737183. The cubic root of 12283728 is about 230.7331864388.

The spelling of 12283728 in words is "twelve million, two hundred eighty-three thousand, seven hundred twenty-eight".