385912311 has 16 divisors (see below), whose sum is σ = 518795616. Its totient is φ = 255159936.

The previous prime is 385912271. The next prime is 385912321. The reversal of 385912311 is 113219583.

It is not a de Polignac number, because 385912311 - 2¹¹ = 385910263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385912321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317541 + ... + 318753.

It is an arithmetic number, because the mean of its divisors is an integer number (32424726).

Almost surely, 2^385912311 is an apocalyptic number.

385912311 is a deficient number, since it is larger than the sum of its proper divisors (132883305).

385912311 is a wasteful number, since it uses less digits than its factorization.

385912311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 6480, while the sum is 33.

The square root of 385912311 is about 19644.6509513404. The cubic root of 385912311 is about 728.0528021668.

The spelling of 385912311 in words is "three hundred eighty-five million, nine hundred twelve thousand, three hundred eleven".