388123670220 has 96 divisors (see below), whose sum is σ = 1276736912640. Its totient is φ = 86852847360.

The previous prime is 388123670189. The next prime is 388123670237. The reversal of 388123670220 is 22076321883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22609350 + ... + 22626509.

It is an arithmetic number, because the mean of its divisors is an integer number (13299342840).

Almost surely, 2^388123670220 is an apocalyptic number.

388123670220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388123670220 is an abundant number, since it is smaller than the sum of its proper divisors (888613242420).

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

388123670220 is a wasteful number, since it uses less digits than its factorization.

388123670220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45235895 (or 45235893 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 388123670220 in words is "three hundred eighty-eight billion, one hundred twenty-three million, six hundred seventy thousand, two hundred twenty".