383888685220 has 24 divisors (see below), whose sum is σ = 821376924984. Its totient is φ = 150658200576.

The previous prime is 383888685209. The next prime is 383888685233. The reversal of 383888685220 is 22586888383.

It can be written as a sum of positive squares in 4 ways, for example, as 35023625316 + 348865059904 = 187146^2 + 590648^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181078509 + ... + 181080628.

It is an arithmetic number, because the mean of its divisors is an integer number (34224038541).

Almost surely, 2^383888685220 is an apocalyptic number.

It is an amenable number.

383888685220 is an abundant number, since it is smaller than the sum of its proper divisors (437488239764).

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

383888685220 is a wasteful number, since it uses less digits than its factorization.

383888685220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362159199 (or 362159197 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 61.

The spelling of 383888685220 in words is "three hundred eighty-three billion, eight hundred eighty-eight million, six hundred eighty-five thousand, two hundred twenty".