385371329 has 6 divisors (see below), whose sum is σ = 448289154. Its totient is φ = 330318240.

The previous prime is 385371271. The next prime is 385371347. The reversal of 385371329 is 923173583.

It can be written as a sum of positive squares in only one way, i.e., 251159104 + 134212225 = 15848^2 + 11585^2 .

It is not a de Polignac number, because 385371329 - 2⁸ = 385371073 is a prime.

It is a super-2 number, since 2×385371329² = 297022122430452482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385371359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3932312 + ... + 3932409.

It is an arithmetic number, because the mean of its divisors is an integer number (74714859).

Almost surely, 2^385371329 is an apocalyptic number.

It is an amenable number.

385371329 is a deficient number, since it is larger than the sum of its proper divisors (62917825).

385371329 is an equidigital number, since it uses as much as digits as its factorization.

385371329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864735 (or 7864728 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 385371329 is about 19630.8769289607. The cubic root of 385371329 is about 727.7124419036.

The spelling of 385371329 in words is "three hundred eighty-five million, three hundred seventy-one thousand, three hundred twenty-nine".