2808344 has 64 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 1059840.

The previous prime is 2808329. The next prime is 2808347. The reversal of 2808344 is 4438082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28904 + ... + 29000.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^2808344 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 2808344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386880).

2808344 is an abundant number, since it is smaller than the sum of its proper divisors (3965416).

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

2808344 is a wasteful number, since it uses less digits than its factorization.

2808344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 2808344 is about 1675.8114452408. The cubic root of 2808344 is about 141.0858421329.

The spelling of 2808344 in words is "two million, eight hundred eight thousand, three hundred forty-four".