385222017 has 32 divisors (see below), whose sum is σ = 550587520. Its totient is φ = 239542272.

The previous prime is 385222003. The next prime is 385222039. The reversal of 385222017 is 710222583.

It is not a de Polignac number, because 385222017 - 2⁴ = 385222001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385222087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1995873 + ... + 1996065.

It is an arithmetic number, because the mean of its divisors is an integer number (17205860).

Almost surely, 2^385222017 is an apocalyptic number.

It is an amenable number.

385222017 is a deficient number, since it is larger than the sum of its proper divisors (165365503).

385222017 is an equidigital number, since it uses as much as digits as its factorization.

385222017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 385222017 is about 19627.0735719821. The cubic root of 385222017 is about 727.6184457776.

The spelling of 385222017 in words is "three hundred eighty-five million, two hundred twenty-two thousand, seventeen".