385193839 has 8 divisors (see below), whose sum is σ = 387759440. Its totient is φ = 382634496.

The previous prime is 385193827. The next prime is 385193843. The reversal of 385193839 is 938391583.

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 385193839 - 2¹¹ = 385191791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385193792 and 385193801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385193819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205384 + ... + 207250.

It is an arithmetic number, because the mean of its divisors is an integer number (48469930).

Almost surely, 2^385193839 is an apocalyptic number.

385193839 is a deficient number, since it is larger than the sum of its proper divisors (2565601).

385193839 is a wasteful number, since it uses less digits than its factorization.

385193839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129.

The product of its digits is 699840, while the sum is 49.

The square root of 385193839 is about 19626.3557238729. The cubic root of 385193839 is about 727.6007042055.

The spelling of 385193839 in words is "three hundred eighty-five million, one hundred ninety-three thousand, eight hundred thirty-nine".