2855100 has 72 divisors (see below), whose sum is σ = 8555008. Its totient is φ = 734400.

The previous prime is 2855093. The next prime is 2855101. The reversal of 2855100 is 15582.

2855100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9147 + ... + 9453.

2^2855100 is an apocalyptic number.

2855100 is a gapful number since it is divisible by the number (20) 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 2855100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4277504).

2855100 is an abundant number, since it is smaller than the sum of its proper divisors (5699908).

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

2855100 is a wasteful number, since it uses less digits than its factorization.

2855100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2855100 is about 1689.7041161103. The cubic root of 2855100 is about 141.8645140290.

The spelling of 2855100 in words is "two million, eight hundred fifty-five thousand, one hundred".