385138 has 8 divisors (see below), whose sum is σ = 622188. Its totient is φ = 177744.

The previous prime is 385129. The next prime is 385139. The reversal of 385138 is 831583.

385138 is digitally balanced in base 3, 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 2 ways, for example, as 351649 + 33489 = 593^2 + 183^2 .

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

It is not an unprimeable number, because it can be changed into a prime (385139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7381 + ... + 7432.

2³⁸⁵¹³⁸ is an apocalyptic number.

385138 is a deficient number, since it is larger than the sum of its proper divisors (237050).

385138 is a wasteful number, since it uses less digits than its factorization.

385138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14828.

The product of its digits is 2880, while the sum is 28.

The square root of 385138 is about 620.5948759054. The cubic root of 385138 is about 72.7565544021.

The spelling of 385138 in words is "three hundred eighty-five thousand, one hundred thirty-eight".