2808842 has 8 divisors (see below), whose sum is σ = 4461156. Its totient is φ = 1321792.

The previous prime is 2808833. The next prime is 2808847. The reversal of 2808842 is 2488082.

It can be written as a sum of positive squares in 2 ways, for example, as 2588881 + 219961 = 1609^2 + 469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2808799 and 2808808.

It is not an unprimeable number, because it can be changed into a prime (2808847) 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, 41273 + ... + 41340.

2^2808842 is an apocalyptic number.

2808842 is a deficient number, since it is larger than the sum of its proper divisors (1652314).

2808842 is a wasteful number, since it uses less digits than its factorization.

2808842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82632.

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 2808842 is about 1675.9600233896. The cubic root of 2808842 is about 141.0941811632.

The spelling of 2808842 in words is "two million, eight hundred eight thousand, eight hundred forty-two".