2808774 has 48 divisors (see below), whose sum is σ = 6587568. Its totient is φ = 861696.

The previous prime is 2808763. The next prime is 2808779. The reversal of 2808774 is 4778082.

It is a super-2 number, since 2×2808774² = 15778422766152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808779) 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 23 ways as a sum of consecutive naturals, for example, 20434 + ... + 20570.

It is an arithmetic number, because the mean of its divisors is an integer number (137241).

2^2808774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2808774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3293784).

2808774 is an abundant number, since it is smaller than the sum of its proper divisors (3778794).

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

2808774 is a wasteful number, since it uses less digits than its factorization.

2808774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 2808774 is about 1675.9397363867. The cubic root of 2808774 is about 141.0930425585.

The spelling of 2808774 in words is "two million, eight hundred eight thousand, seven hundred seventy-four".