2855880 has 48 divisors (see below), whose sum is σ = 9282780. Its totient is φ = 761472.

The previous prime is 2855873. The next prime is 2855893. The reversal of 2855880 is 885582.

2855880 is a `hidden beast` number, since 28 + 558 + 80 = 666.

2855880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 93636 = 1662^2 + 306^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 3607 + ... + 4326.

2^2855880 is an apocalyptic number.

2855880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2855880 is an abundant number, since it is smaller than the sum of its proper divisors (6426900).

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

2855880 is a wasteful number, since it uses less digits than its factorization.

2855880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950 (or 7943 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 2855880 is about 1689.9349099891. The cubic root of 2855880 is about 141.8774317605.

The spelling of 2855880 in words is "two million, eight hundred fifty-five thousand, eight hundred eighty".