385882915 has 36 divisors (see below), whose sum is σ = 540929088. Its totient is φ = 264014080.

The previous prime is 385882897. The next prime is 385882933. The reversal of 385882915 is 519288583.

It is an interprime number because it is at equal distance from previous prime (385882897) and next prime (385882933).

It is not a de Polignac number, because 385882915 - 2⁹ = 385882403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 173742 + ... + 175948.

It is an arithmetic number, because the mean of its divisors is an integer number (15025808).

Almost surely, 2^385882915 is an apocalyptic number.

385882915 is a deficient number, since it is larger than the sum of its proper divisors (155046173).

385882915 is a wasteful number, since it uses less digits than its factorization.

385882915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2240 counting only the distinct ones).

The product of its digits is 691200, while the sum is 49.

The square root of 385882915 is about 19643.9027435996. The cubic root of 385882915 is about 728.0343157706.

The spelling of 385882915 in words is "three hundred eighty-five million, eight hundred eighty-two thousand, nine hundred fifteen".