2881616 has 20 divisors (see below), whose sum is σ = 5877600. Its totient is φ = 1364832.

The previous prime is 2881591. The next prime is 2881621. The reversal of 2881616 is 6161882.

2881616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2881616 is a modest number, since divided by 1616 gives 288 as remainder.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

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, 4436 + ... + 5043.

It is an arithmetic number, because the mean of its divisors is an integer number (293880).

2^2881616 is an apocalyptic number.

It is an amenable number.

2881616 is an abundant number, since it is smaller than the sum of its proper divisors (2995984).

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

2881616 is a wasteful number, since it uses less digits than its factorization.

2881616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506 (or 9500 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 2881616 is about 1697.5323266436. The cubic root of 2881616 is about 142.3023380353.

The spelling of 2881616 in words is "two million, eight hundred eighty-one thousand, six hundred sixteen".