385906828 has 12 divisors (see below), whose sum is σ = 698624640. Its totient is φ = 186299792.

The previous prime is 385906823. The next prime is 385906841. The reversal of 385906828 is 828609583.

It is not an unprimeable number, because it can be changed into a prime (385906823) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1663276 + ... + 1663507.

It is an arithmetic number, because the mean of its divisors is an integer number (58218720).

Almost surely, 2^385906828 is an apocalyptic number.

It is an amenable number.

385906828 is a deficient number, since it is larger than the sum of its proper divisors (312717812).

385906828 is a wasteful number, since it uses less digits than its factorization.

385906828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326816 (or 3326814 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 385906828 is about 19644.5113963163. The cubic root of 385906828 is about 728.0493541189.

The spelling of 385906828 in words is "three hundred eighty-five million, nine hundred six thousand, eight hundred twenty-eight".