3808218 has 8 divisors (see below), whose sum is σ = 7616448. Its totient is φ = 1269404.

The previous prime is 3808177. The next prime is 3808223. The reversal of 3808218 is 8128083.

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

3808218 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 317346 + ... + 317357.

It is an arithmetic number, because the mean of its divisors is an integer number (952056).

Almost surely, 2^3808218 is an apocalyptic number.

3808218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3808218 is a wasteful number, since it uses less digits than its factorization.

3808218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634708.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 3808218 is about 1951.4656030789. The cubic root of 3808218 is about 156.1614862942.

The spelling of 3808218 in words is "three million, eight hundred eight thousand, two hundred eighteen".