38198155 has 8 divisors (see below), whose sum is σ = 45874512. Its totient is φ = 30534048.

The previous prime is 38198143. The next prime is 38198161. The reversal of 38198155 is 55189183.

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

It is a cyclic number.

It is not a de Polignac number, because 38198155 - 2⁵ = 38198123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6549 + ... + 10921.

It is an arithmetic number, because the mean of its divisors is an integer number (5734314).

Almost surely, 2^38198155 is an apocalyptic number.

38198155 is a deficient number, since it is larger than the sum of its proper divisors (7676357).

38198155 is a wasteful number, since it uses less digits than its factorization.

38198155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125.

The product of its digits is 43200, while the sum is 40.

The square root of 38198155 is about 6180.4655973478. The cubic root of 38198155 is about 336.7809069985.

The spelling of 38198155 in words is "thirty-eight million, one hundred ninety-eight thousand, one hundred fifty-five".