385697808 has 80 divisors (see below), whose sum is σ = 1117388800. Its totient is φ = 127370880.

The previous prime is 385697803. The next prime is 385697843. The reversal of 385697808 is 808796583.

It is a happy number.

385697808 is a `hidden beast` number, since 3 + 8 + 569 + 78 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (385697803) 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 15 ways as a sum of consecutive naturals, for example, 42993 + ... + 51183.

It is an arithmetic number, because the mean of its divisors is an integer number (13967360).

Almost surely, 2^385697808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385697808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558694400).

385697808 is an abundant number, since it is smaller than the sum of its proper divisors (731690992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385697808 is a wasteful number, since it uses less digits than its factorization.

385697808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317 (or 8305 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 385697808 is about 19639.1906146867. The cubic root of 385697808 is about 727.9178851149.

The spelling of 385697808 in words is "three hundred eighty-five million, six hundred ninety-seven thousand, eight hundred eight".