38185445 has 8 divisors (see below), whose sum is σ = 45940344. Its totient is φ = 30469824.

The previous prime is 38185439. The next prime is 38185447. The reversal of 38185445 is 54458183.

38185445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1437601 + 36747844 = 1199^2 + 6062^2 .

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 38185445 - 2⁴ = 38185429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38185399 and 38185408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38185447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7634 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (5742543).

Almost surely, 2^38185445 is an apocalyptic number.

It is an amenable number.

38185445 is a deficient number, since it is larger than the sum of its proper divisors (7754899).

38185445 is a wasteful number, since it uses less digits than its factorization.

38185445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19639.

The product of its digits is 76800, while the sum is 38.

The square root of 38185445 is about 6179.4372721147. The cubic root of 38185445 is about 336.7435495208.

The spelling of 38185445 in words is "thirty-eight million, one hundred eighty-five thousand, four hundred forty-five".