38838228 has 72 divisors (see below), whose sum is σ = 107112096. Its totient is φ = 10857600.

The previous prime is 38838211. The next prime is 38838259. The reversal of 38838228 is 82283883.

38838228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38838228.

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 23 ways as a sum of consecutive naturals, for example, 21438 + ... + 23178.

It is an arithmetic number, because the mean of its divisors is an integer number (1487668).

Almost surely, 2^38838228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38838228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53556048).

38838228 is an abundant number, since it is smaller than the sum of its proper divisors (68273868).

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

38838228 is a wasteful number, since it uses less digits than its factorization.

38838228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1770 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 38838228 is about 6232.0324132662. The cubic root of 38838228 is about 338.6516029804.

The spelling of 38838228 in words is "thirty-eight million, eight hundred thirty-eight thousand, two hundred twenty-eight".