2840255 has 16 divisors (see below), whose sum is σ = 3759264. Its totient is φ = 2042880.

The previous prime is 2840249. The next prime is 2840261. The reversal of 2840255 is 5520482.

It is an interprime number because it is at equal distance from previous prime (2840249) and next prime (2840261).

It is not a de Polignac number, because 2840255 - 2⁴ = 2840239 is a prime.

It is a Duffinian number.

It is a congruent 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, 5987 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (234954).

2^2840255 is an apocalyptic number.

2840255 is a deficient number, since it is larger than the sum of its proper divisors (919009).

2840255 is a wasteful number, since it uses less digits than its factorization.

2840255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2840255 is about 1685.3056102678. The cubic root of 2840255 is about 141.6182133413.

The spelling of 2840255 in words is "two million, eight hundred forty thousand, two hundred fifty-five".