385308852 has 12 divisors (see below), whose sum is σ = 899054016. Its totient is φ = 128436280.

The previous prime is 385308851. The next prime is 385308863. The reversal of 385308852 is 258803583.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×385308852² = 296925822859115808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385308851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16054524 + ... + 16054547.

It is an arithmetic number, because the mean of its divisors is an integer number (74921168).

Almost surely, 2^385308852 is an apocalyptic number.

It is an amenable number.

385308852 is an abundant number, since it is smaller than the sum of its proper divisors (513745164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385308852 is a wasteful number, since it uses less digits than its factorization.

385308852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32109078 (or 32109076 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 385308852 is about 19629.2855702901. The cubic root of 385308852 is about 727.6731138201.

The spelling of 385308852 in words is "three hundred eighty-five million, three hundred eight thousand, eight hundred fifty-two".