2881886 has 16 divisors (see below), whose sum is σ = 5042400. Its totient is φ = 1234800.

The previous prime is 2881883. The next prime is 2881889. The reversal of 2881886 is 6881882.

It is an interprime number because it is at equal distance from previous prime (2881883) and next prime (2881889).

It is a Curzon number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (315150).

2^2881886 is an apocalyptic number.

2881886 is a deficient number, since it is larger than the sum of its proper divisors (2160514).

2881886 is an equidigital number, since it uses as much as digits as its factorization.

2881886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224 (or 4210 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The square root of 2881886 is about 1697.6118519850. The cubic root of 2881886 is about 142.3067823508.

The spelling of 2881886 in words is "two million, eight hundred eighty-one thousand, eight hundred eighty-six".