2808238 has 16 divisors (see below), whose sum is σ = 4504320. Its totient is φ = 1309176.

The previous prime is 2808229. The next prime is 2808241. The reversal of 2808238 is 8328082.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1995 + ... + 3097.

It is an arithmetic number, because the mean of its divisors is an integer number (281520).

2^2808238 is an apocalyptic number.

2808238 is a deficient number, since it is larger than the sum of its proper divisors (1696082).

2808238 is a wasteful number, since it uses less digits than its factorization.

2808238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2808238 is about 1675.7798184726. The cubic root of 2808238 is about 141.0840670314.

The spelling of 2808238 in words is "two million, eight hundred eight thousand, two hundred thirty-eight".