38385818220 has 48 divisors (see below), whose sum is σ = 109084485888. Its totient is φ = 10083437760.

The previous prime is 38385818189. The next prime is 38385818299. The reversal of 38385818220 is 2281858383.

It is a self number, because there is not a number n which added to its sum of digits gives 38385818220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4770336 + ... + 4778375.

It is an arithmetic number, because the mean of its divisors is an integer number (2272593456).

Almost surely, 2^38385818220 is an apocalyptic number.

38385818220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38385818220 is an abundant number, since it is smaller than the sum of its proper divisors (70698667668).

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

38385818220 is a wasteful number, since it uses less digits than its factorization.

38385818220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9548790 (or 9548788 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 38385818220 in words is "thirty-eight billion, three hundred eighty-five million, eight hundred eighteen thousand, two hundred twenty".