385821134 has 8 divisors (see below), whose sum is σ = 578817120. Its totient is φ = 192882096.

The previous prime is 385821131. The next prime is 385821173. The reversal of 385821134 is 431128583.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 385821094 and 385821103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385821131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13547 + ... + 30905.

It is an arithmetic number, because the mean of its divisors is an integer number (72352140).

Almost surely, 2^385821134 is an apocalyptic number.

385821134 is a deficient number, since it is larger than the sum of its proper divisors (192995986).

385821134 is a wasteful number, since it uses less digits than its factorization.

385821134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28474.

The product of its digits is 23040, while the sum is 35.

The square root of 385821134 is about 19642.3301570868. The cubic root of 385821134 is about 727.9954602120.

The spelling of 385821134 in words is "three hundred eighty-five million, eight hundred twenty-one thousand, one hundred thirty-four".