38218218 has 8 divisors (see below), whose sum is σ = 76436448. Its totient is φ = 12739404.

The previous prime is 38218211. The next prime is 38218223. The reversal of 38218218 is 81281283.

38218218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

38218218 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (38218211) by changing a digit.

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, 3184846 + ... + 3184857.

It is an arithmetic number, because the mean of its divisors is an integer number (9554556).

Almost surely, 2^38218218 is an apocalyptic number.

38218218 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.

38218218 is a wasteful number, since it uses less digits than its factorization.

38218218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369708.

The product of its digits is 6144, while the sum is 33.

The square root of 38218218 is about 6182.0884820585. The cubic root of 38218218 is about 336.8398596950.

The spelling of 38218218 in words is "thirty-eight million, two hundred eighteen thousand, two hundred eighteen".