2881280 has 36 divisors (see below), whose sum is σ = 6904632. Its totient is φ = 1152000.

The previous prime is 2881273. The next prime is 2881289. The reversal of 2881280 is 821882.

2881280 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 not an unprimeable number, because it can be changed into a prime (2881289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155 + ... + 2405.

2^2881280 is an apocalyptic number.

2881280 is a gapful number since it is divisible by the number (20) 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 2881280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3452316).

2881280 is an abundant number, since it is smaller than the sum of its proper divisors (4023352).

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

2881280 is an equidigital number, since it uses as much as digits as its factorization.

2881280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 2881280 is about 1697.4333565710. The cubic root of 2881280 is about 142.2968069440.

The spelling of 2881280 in words is "two million, eight hundred eighty-one thousand, two hundred eighty".