38638198 has 8 divisors (see below), whose sum is σ = 58049640. Its totient is φ = 19288320.

The previous prime is 38638181. The next prime is 38638207. The reversal of 38638198 is 89183683.

38638198 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.

It is a zygodrome in base 8.

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 3 ways as a sum of consecutive naturals, for example, 13788 + ... + 16351.

It is an arithmetic number, because the mean of its divisors is an integer number (7256205).

Almost surely, 2^38638198 is an apocalyptic number.

38638198 is a deficient number, since it is larger than the sum of its proper divisors (19411442).

38638198 is a wasteful number, since it uses less digits than its factorization.

38638198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30782.

The product of its digits is 248832, while the sum is 46.

The square root of 38638198 is about 6215.9631594790. The cubic root of 38638198 is about 338.0692119274.

The spelling of 38638198 in words is "thirty-eight million, six hundred thirty-eight thousand, one hundred ninety-eight".