38218668 has 24 divisors (see below), whose sum is σ = 89284272. Its totient is φ = 12724224.

The previous prime is 38218657. The next prime is 38218717. The reversal of 38218668 is 86681283.

38218668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 13296 + ... + 15912.

It is an arithmetic number, because the mean of its divisors is an integer number (3720178).

Almost surely, 2^38218668 is an apocalyptic number.

It is an amenable number.

38218668 is an abundant number, since it is smaller than the sum of its proper divisors (51065604).

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

38218668 is a wasteful number, since it uses less digits than its factorization.

38218668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841 (or 3839 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 38218668 is about 6182.1248774188. The cubic root of 38218668 is about 336.8411817289.

The spelling of 38218668 in words is "thirty-eight million, two hundred eighteen thousand, six hundred sixty-eight".