12840048 has 120 divisors (see below), whose sum is σ = 40848080. Its totient is φ = 3742848.

The previous prime is 12840031. The next prime is 12840089. The reversal of 12840048 is 84004821.

12840048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 675783 + ... + 675801.

Almost surely, 2^12840048 is an apocalyptic number.

12840048 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 12840048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20424040).

12840048 is an abundant number, since it is smaller than the sum of its proper divisors (28008032).

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

12840048 is a wasteful number, since it uses less digits than its factorization.

12840048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 12840048 is about 3583.3012711744. The cubic root of 12840048 is about 234.1651256145.

Adding to 12840048 its reverse (84004821), we get a palindrome (96844869).

The spelling of 12840048 in words is "twelve million, eight hundred forty thousand, forty-eight".