2884385 has 24 divisors (see below), whose sum is σ = 4113576. Its totient is φ = 1935360.

The previous prime is 2884381. The next prime is 2884403. The reversal of 2884385 is 5834882.

It can be written as a sum of positive squares in 4 ways, for example, as 38416 + 2845969 = 196^2 + 1687^2 .

It is not a de Polignac number, because 2884385 - 2² = 2884381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2884381) 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 23 ways as a sum of consecutive naturals, for example, 14849 + ... + 15041.

It is an arithmetic number, because the mean of its divisors is an integer number (171399).

2^2884385 is an apocalyptic number.

It is an amenable number.

2884385 is a deficient number, since it is larger than the sum of its proper divisors (1229191).

2884385 is a wasteful number, since it uses less digits than its factorization.

2884385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 266 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 2884385 is about 1698.3477264683. The cubic root of 2884385 is about 142.3479037907.

The spelling of 2884385 in words is "two million, eight hundred eighty-four thousand, three hundred eighty-five".