2684844 has 72 divisors (see below), whose sum is σ = 7429968. Its totient is φ = 814080.

The previous prime is 2684837. The next prime is 2684881. The reversal of 2684844 is 4484862.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2684799 and 2684808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25039 + ... + 25145.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

2^2684844 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 2684844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3714984).

2684844 is an abundant number, since it is smaller than the sum of its proper divisors (4745124).

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

2684844 is a wasteful number, since it uses less digits than its factorization.

2684844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 170 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 2684844 is about 1638.5493584265. The cubic root of 2684844 is about 138.9866281152.

The spelling of 2684844 in words is "two million, six hundred eighty-four thousand, eight hundred forty-four".