38189475 has 30 divisors (see below), whose sum is σ = 70743860. Its totient is φ = 20366640.

The previous prime is 38189423. The next prime is 38189483. The reversal of 38189475 is 57498183.

38189475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38189475 - 2⁹ = 38188963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38189475.

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 29 ways as a sum of consecutive naturals, for example, 7405 + ... + 11454.

Almost surely, 2^38189475 is an apocalyptic number.

38189475 is a deficient number, since it is larger than the sum of its proper divisors (32554385).

38189475 is a wasteful number, since it uses less digits than its factorization.

38189475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18881 (or 18867 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 38189475 is about 6179.7633449834. The cubic root of 38189475 is about 336.7553954721.

Subtracting from 38189475 its sum of digits (45), we obtain a triangular number (38189430 = T₈₇₃₉).

The spelling of 38189475 in words is "thirty-eight million, one hundred eighty-nine thousand, four hundred seventy-five".