2684556 has 96 divisors (see below), whose sum is σ = 8225280. Its totient is φ = 741312.

The previous prime is 2684551. The next prime is 2684587. The reversal of 2684556 is 6554862.

2684556 is a `hidden beast` number, since 26 + 84 + 556 = 666.

2684556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2684556.

It is not an unprimeable number, because it can be changed into a prime (2684551) 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 31 ways as a sum of consecutive naturals, for example, 40035 + ... + 40101.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2^2684556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2684556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4112640).

2684556 is an abundant number, since it is smaller than the sum of its proper divisors (5540724).

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

2684556 is a wasteful number, since it uses less digits than its factorization.

2684556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 132 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 2684556 is about 1638.4614734561. The cubic root of 2684556 is about 138.9816582944.

It can be divided in two parts, 2684 and 556, that added together give a triangular number (3240 = T₈₀).

The spelling of 2684556 in words is "two million, six hundred eighty-four thousand, five hundred fifty-six".