2805612 has 36 divisors (see below), whose sum is σ = 6962760. Its totient is φ = 879104.

The previous prime is 2805601. The next prime is 2805619. The reversal of 2805612 is 2165082.

It is not an unprimeable number, because it can be changed into a prime (2805619) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3064 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (193410).

2^2805612 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 2805612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3481380).

2805612 is an abundant number, since it is smaller than the sum of its proper divisors (4157148).

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

2805612 is a wasteful number, since it uses less digits than its factorization.

2805612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2805612 is about 1674.9961193985. The cubic root of 2805612 is about 141.0400771343.

The spelling of 2805612 in words is "two million, eight hundred five thousand, six hundred twelve".