20283039888 has 80 divisors (see below), whose sum is σ = 53235967680. Its totient is φ = 6653657088.

The previous prime is 20283039863. The next prime is 20283039893. The reversal of 20283039888 is 88893038202.

It is a super-2 number, since 2×20283039888² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20283039888.

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, 821256 + ... + 845592.

It is an arithmetic number, because the mean of its divisors is an integer number (665449596).

Almost surely, 2^20283039888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20283039888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26617983840).

20283039888 is an abundant number, since it is smaller than the sum of its proper divisors (32952927792).

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

20283039888 is a wasteful number, since it uses less digits than its factorization.

20283039888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24624 (or 24618 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 20283039888 in words is "twenty billion, two hundred eighty-three million, thirty-nine thousand, eight hundred eighty-eight".