385838838 has 72 divisors (see below), whose sum is σ = 1060904520. Its totient is φ = 100215360.

The previous prime is 385838807. The next prime is 385838879. The reversal of 385838838 is 838838583.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10183 + ... + 29586.

It is an arithmetic number, because the mean of its divisors is an integer number (14734785).

Almost surely, 2^385838838 is an apocalyptic number.

385838838 is an abundant number, since it is smaller than the sum of its proper divisors (675065682).

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

385838838 is a wasteful number, since it uses less digits than its factorization.

385838838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39802 (or 39792 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 385838838 is about 19642.7808112803. The cubic root of 385838838 is about 728.0065951079.

The spelling of 385838838 in words is "three hundred eighty-five million, eight hundred thirty-eight thousand, eight hundred thirty-eight".