2808436 has 12 divisors (see below), whose sum is σ = 4932928. Its totient is φ = 1399032.

The previous prime is 2808433. The next prime is 2808437. The reversal of 2808436 is 6348082.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2808398 and 2808407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85 + ... + 2371.

2^2808436 is an apocalyptic number.

It is an amenable number.

2808436 is a deficient number, since it is larger than the sum of its proper divisors (2124492).

2808436 is a wasteful number, since it uses less digits than its factorization.

2808436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598 (or 2596 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2808436 is about 1675.8388944048. The cubic root of 2808436 is about 141.0873827509.

The spelling of 2808436 in words is "two million, eight hundred eight thousand, four hundred thirty-six".