12841440 has 96 divisors (see below), whose sum is σ = 41803776. Its totient is φ = 3310080.

The previous prime is 12841417. The next prime is 12841447. The reversal of 12841440 is 4414821.

12841440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12841440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12841447) 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, 14449 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (435456).

Almost surely, 2^12841440 is an apocalyptic number.

12841440 is a gapful number since it is divisible by the number (10) 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 12841440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20901888).

12841440 is an abundant number, since it is smaller than the sum of its proper divisors (28962336).

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

12841440 is a wasteful number, since it uses less digits than its factorization.

12841440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 12841440 is about 3583.4955002065. The cubic root of 12841440 is about 234.1735873190.

The spelling of 12841440 in words is "twelve million, eight hundred forty-one thousand, four hundred forty".