20388522384 has 240 divisors, whose sum is σ = 60811732800. Its totient is φ = 6366495744.

The previous prime is 20388522383. The next prime is 20388522391. The reversal of 20388522384 is 48322588302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20388522383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20449374 + ... + 20450370.

It is an arithmetic number, because the mean of its divisors is an integer number (253382220).

Almost surely, 2^20388522384 is an apocalyptic number.

20388522384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20388522384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30405866400).

20388522384 is an abundant number, since it is smaller than the sum of its proper divisors (40423210416).

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

20388522384 is a wasteful number, since it uses less digits than its factorization.

20388522384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1173 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 20388522384 in words is "twenty billion, three hundred eighty-eight million, five hundred twenty-two thousand, three hundred eighty-four".