2805396 has 48 divisors (see below), whose sum is σ = 7293888. Its totient is φ = 832000.

The previous prime is 2805389. The next prime is 2805403. The reversal of 2805396 is 6935082.

It is a happy number.

2805396 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2805389) and next prime (2805403).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6796 + ... + 7196.

It is an arithmetic number, because the mean of its divisors is an integer number (151956).

2^2805396 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 2805396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3646944).

2805396 is an abundant number, since it is smaller than the sum of its proper divisors (4488492).

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

2805396 is a wasteful number, since it uses less digits than its factorization.

2805396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2805396 is about 1674.9316403961. The cubic root of 2805396 is about 141.0364575511.

The spelling of 2805396 in words is "two million, eight hundred five thousand, three hundred ninety-six".