12912048 has 100 divisors (see below), whose sum is σ = 38440248. Its totient is φ = 4199040.

The previous prime is 12912043. The next prime is 12912073. The reversal of 12912048 is 84021921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (12912041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 314908 + ... + 314948.

Almost surely, 2^12912048 is an apocalyptic number.

12912048 is a gapful number since it is divisible by the number (18) 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 12912048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19220124).

12912048 is an abundant number, since it is smaller than the sum of its proper divisors (25528200).

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

12912048 is an frugal number, since it uses more digits than its factorization.

12912048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12912048 is about 3593.3338280767. Note that the first 3 decimals coincide. The cubic root of 12912048 is about 234.6020002315.

Adding to 12912048 its reverse (84021921), we get a palindrome (96933969).

The spelling of 12912048 in words is "twelve million, nine hundred twelve thousand, forty-eight".