12288028 has 24 divisors (see below), whose sum is σ = 22748544. Its totient is φ = 5798400.

The previous prime is 12288019. The next prime is 12288043. The reversal of 12288028 is 82088221.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 3876 + ... + 6292.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 2^12288028 is an apocalyptic number.

It is an amenable number.

12288028 is a deficient number, since it is larger than the sum of its proper divisors (10460516).

12288028 is a wasteful number, since it uses less digits than its factorization.

12288028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 12288028 is about 3505.4283618411. The cubic root of 12288028 is about 230.7601065224.

The spelling of 12288028 in words is "twelve million, two hundred eighty-eight thousand, twenty-eight".