12808992 has 96 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 3650304.

The previous prime is 12808979. The next prime is 12808997. The reversal of 12808992 is 29980821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 12808992.

It is not an unprimeable number, because it can be changed into a prime (12808997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32734 + ... + 33122.

It is an arithmetic number, because the mean of its divisors is an integer number (409500).

Almost surely, 2^12808992 is an apocalyptic number.

12808992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12808992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19656000).

12808992 is an abundant number, since it is smaller than the sum of its proper divisors (26503008).

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

12808992 is an equidigital number, since it uses as much as digits as its factorization.

12808992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 12808992 is about 3578.9652135778. The cubic root of 12808992 is about 233.9761828341.

The spelling of 12808992 in words is "twelve million, eight hundred eight thousand, nine hundred ninety-two".