2855380 has 24 divisors (see below), whose sum is σ = 6541920. Its totient is φ = 1038240.

The previous prime is 2855357. The next prime is 2855383. The reversal of 2855380 is 835582.

2855380 = 278² + 279² + ... + 310².

2855380 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 (2855383) 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 7 ways as a sum of consecutive naturals, for example, 6270 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (272580).

2^2855380 is an apocalyptic number.

2855380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2855380 is an abundant number, since it is smaller than the sum of its proper divisors (3686540).

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

2855380 is a wasteful number, since it uses less digits than its factorization.

2855380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12999 (or 12997 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 2855380 is about 1689.7869688218. The cubic root of 2855380 is about 141.8691514340.

It can be divided in two parts, 285 and 5380, that added together give a palindrome (5665).

The spelling of 2855380 in words is "two million, eight hundred fifty-five thousand, three hundred eighty".