38138198 has 16 divisors (see below), whose sum is σ = 66209280. Its totient is φ = 16137576.

The previous prime is 38138179. The next prime is 38138201. The reversal of 38138198 is 89183183.

It is a happy number.

38138198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 16136 + ... + 18347.

It is an arithmetic number, because the mean of its divisors is an integer number (4138080).

Almost surely, 2^38138198 is an apocalyptic number.

38138198 is a deficient number, since it is larger than the sum of its proper divisors (28071082).

38138198 is a wasteful number, since it uses less digits than its factorization.

38138198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34571.

The product of its digits is 41472, while the sum is 41.

The square root of 38138198 is about 6175.6131679373. The cubic root of 38138198 is about 336.6046074982.

The spelling of 38138198 in words is "thirty-eight million, one hundred thirty-eight thousand, one hundred ninety-eight".