385280847 has 16 divisors (see below), whose sum is σ = 652327680. Its totient is φ = 220160376.

The previous prime is 385280839. The next prime is 385280881. The reversal of 385280847 is 748082583.

It is not a de Polignac number, because 385280847 - 2³ = 385280839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385280837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019073 + ... + 1019450.

It is an arithmetic number, because the mean of its divisors is an integer number (40770480).

Almost surely, 2^385280847 is an apocalyptic number.

385280847 is a deficient number, since it is larger than the sum of its proper divisors (267046833).

385280847 is a wasteful number, since it uses less digits than its factorization.

385280847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038539 (or 2038533 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 385280847 is about 19628.5722099189. The cubic root of 385280847 is about 727.6554838252.

The spelling of 385280847 in words is "three hundred eighty-five million, two hundred eighty thousand, eight hundred forty-seven".