38138875 has 8 divisors (see below), whose sum is σ = 47597472. Its totient is φ = 30511000.

The previous prime is 38138869. The next prime is 38138927. The reversal of 38138875 is 57883183.

It is not a de Polignac number, because 38138875 - 2⁵ = 38138843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152431 + ... + 152680.

It is an arithmetic number, because the mean of its divisors is an integer number (5949684).

Almost surely, 2^38138875 is an apocalyptic number.

38138875 is a deficient number, since it is larger than the sum of its proper divisors (9458597).

38138875 is an equidigital number, since it uses as much as digits as its factorization.

38138875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305126 (or 305116 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 38138875 is about 6175.6679800650. The cubic root of 38138875 is about 336.6065992019.

The spelling of 38138875 in words is "thirty-eight million, one hundred thirty-eight thousand, eight hundred seventy-five".