385517039 has 4 divisors (see below), whose sum is σ = 398810760. Its totient is φ = 372223320.

The previous prime is 385517029. The next prime is 385517047. The reversal of 385517039 is 930715583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930715583 = 7 ⋅132959369.

It is a cyclic number.

It is not a de Polignac number, because 385517039 - 2¹² = 385512943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385516987 and 385517005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385517029) 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, 6646817 + ... + 6646874.

It is an arithmetic number, because the mean of its divisors is an integer number (99702690).

Almost surely, 2^385517039 is an apocalyptic number.

385517039 is a deficient number, since it is larger than the sum of its proper divisors (13293721).

385517039 is a wasteful number, since it uses less digits than its factorization.

385517039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13293720.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 385517039 is about 19634.5878235322. The cubic root of 385517039 is about 727.8041470641.

The spelling of 385517039 in words is "three hundred eighty-five million, five hundred seventeen thousand, thirty-nine".