38500191 has 24 divisors (see below), whose sum is σ = 58915584. Its totient is φ = 25113240.

The previous prime is 38500159. The next prime is 38500199. The reversal of 38500191 is 19100583.

It is not a de Polignac number, because 38500191 - 2⁵ = 38500159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38500199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9736 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (2454816).

Almost surely, 2^38500191 is an apocalyptic number.

38500191 is a deficient number, since it is larger than the sum of its proper divisors (20415393).

38500191 is an equidigital number, since it uses as much as digits as its factorization.

38500191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 38500191 is about 6204.8522141950. The cubic root of 38500191 is about 337.6662292246. Note that the first 3 decimals are identical.

The spelling of 38500191 in words is "thirty-eight million, five hundred thousand, one hundred ninety-one".