2808136 has 16 divisors (see below), whose sum is σ = 5298300. Its totient is φ = 1395264.

The previous prime is 2808119. The next prime is 2808149. The reversal of 2808136 is 6318082.

It can be written as a sum of positive squares in 2 ways, for example, as 1943236 + 864900 = 1394^2 + 930^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370 + ... + 2398.

2^2808136 is an apocalyptic number.

It is an amenable number.

2808136 is a deficient number, since it is larger than the sum of its proper divisors (2490164).

2808136 is a wasteful number, since it uses less digits than its factorization.

2808136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208 (or 2204 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2808136 is about 1675.7493846038. The cubic root of 2808136 is about 141.0823588726.

The spelling of 2808136 in words is "two million, eight hundred eight thousand, one hundred thirty-six".