385320775 has 24 divisors (see below), whose sum is σ = 560822240. Its totient is φ = 257074560.

The previous prime is 385320769. The next prime is 385320811. The reversal of 385320775 is 577023583.

It is not a de Polignac number, because 385320775 - 2⁷ = 385320647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23280 + ... + 36229.

Almost surely, 2^385320775 is an apocalyptic number.

385320775 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

385320775 is a deficient number, since it is larger than the sum of its proper divisors (175501465).

385320775 is a wasteful number, since it uses less digits than its factorization.

385320775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59563 (or 59558 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 385320775 is about 19629.5892723205. The cubic root of 385320775 is about 727.6806194501.

The spelling of 385320775 in words is "three hundred eighty-five million, three hundred twenty thousand, seven hundred seventy-five".