12704288 has 24 divisors (see below), whose sum is σ = 25546752. Its totient is φ = 6216256.

The previous prime is 12704273. The next prime is 12704297. The reversal of 12704288 is 88240721.

It is a super-2 number, since 2×12704288² = 322797867173888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2720 + ... + 5727.

It is an arithmetic number, because the mean of its divisors is an integer number (1064448).

Almost surely, 2^12704288 is an apocalyptic number.

It is an amenable number.

12704288 is an abundant number, since it is smaller than the sum of its proper divisors (12842464).

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

12704288 is an equidigital number, since it uses as much as digits as its factorization.

12704288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504 (or 8496 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 12704288 is about 3564.3075063748. The cubic root of 12704288 is about 233.3369106028.

The spelling of 12704288 in words is "twelve million, seven hundred four thousand, two hundred eighty-eight".