2858784 has 48 divisors (see below), whose sum is σ = 7606368. Its totient is φ = 940032.

The previous prime is 2858777. The next prime is 2858803. The reversal of 2858784 is 4878582.

2858784 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 (48).

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 7 ways as a sum of consecutive naturals, for example, 9159 + ... + 9465.

It is an arithmetic number, because the mean of its divisors is an integer number (158466).

2^2858784 is an apocalyptic number.

2858784 is a gapful number since it is divisible by the number (24) 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 2858784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3803184).

2858784 is an abundant number, since it is smaller than the sum of its proper divisors (4747584).

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

2858784 is a wasteful number, since it uses less digits than its factorization.

2858784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 409 counting only the distinct ones).

The product of its digits is 143360, while the sum is 42.

The square root of 2858784 is about 1690.7938963694. The cubic root of 2858784 is about 141.9255047992.

The spelling of 2858784 in words is "two million, eight hundred fifty-eight thousand, seven hundred eighty-four".