2806628 has 24 divisors (see below), whose sum is σ = 5400864. Its totient is φ = 1265600.

The previous prime is 2806619. The next prime is 2806651. The reversal of 2806628 is 8266082.

It is a happy number.

2806628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2806594 and 2806603.

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 7 ways as a sum of consecutive naturals, for example, 9848 + ... + 10128.

It is an arithmetic number, because the mean of its divisors is an integer number (225036).

2^2806628 is an apocalyptic number.

It is an amenable number.

2806628 is a deficient number, since it is larger than the sum of its proper divisors (2594236).

2806628 is a wasteful number, since it uses less digits than its factorization.

2806628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2806628 is about 1675.2993762310. The cubic root of 2806628 is about 141.0571000898.

The spelling of 2806628 in words is "two million, eight hundred six thousand, six hundred twenty-eight".