2840065 has 16 divisors (see below), whose sum is σ = 3580416. Its totient is φ = 2160000.

The previous prime is 2840059. The next prime is 2840077. The reversal of 2840065 is 5600482.

It is not a de Polignac number, because 2840065 - 2⁷ = 2839937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11190 + ... + 11440.

It is an arithmetic number, because the mean of its divisors is an integer number (223776).

2^2840065 is an apocalyptic number.

It is an amenable number.

2840065 is a deficient number, since it is larger than the sum of its proper divisors (740351).

2840065 is a wasteful number, since it uses less digits than its factorization.

2840065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2840065 is about 1685.2492397269. The cubic root of 2840065 is about 141.6150554018.

The spelling of 2840065 in words is "two million, eight hundred forty thousand, sixty-five".