2887842 has 8 divisors (see below), whose sum is σ = 5775696. Its totient is φ = 962612.

The previous prime is 2887817. The next prime is 2887847. The reversal of 2887842 is 2487882.

It is a sphenic number, since it is the product of 3 distinct primes.

2887842 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2887842.

It is not an unprimeable number, because it can be changed into a prime (2887847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240648 + ... + 240659.

It is an arithmetic number, because the mean of its divisors is an integer number (721962).

2^2887842 is an apocalyptic number.

2887842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2887842 is a wasteful number, since it uses less digits than its factorization.

2887842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481312.

The product of its digits is 57344, while the sum is 39.

The square root of 2887842 is about 1699.3651755876. The cubic root of 2887842 is about 142.4047501361.

It can be divided in two parts, 28878 and 42, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 2887842 in words is "two million, eight hundred eighty-seven thousand, eight hundred forty-two".