20243288448 has 256 divisors, whose sum is σ = 64037721600. Its totient is φ = 6279026688.

The previous prime is 20243288369. The next prime is 20243288449. The reversal of 20243288448 is 84488234202.

20243288448 is a `hidden beast` number, since 202 + 4 + 328 + 84 + 48 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243288449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2937615 + ... + 2944497.

It is an arithmetic number, because the mean of its divisors is an integer number (250147350).

Almost surely, 2^20243288448 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 20243288448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32018860800).

20243288448 is an abundant number, since it is smaller than the sum of its proper divisors (43794433152).

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

20243288448 is a wasteful number, since it uses less digits than its factorization.

20243288448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966 (or 6948 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 45.

The spelling of 20243288448 in words is "twenty billion, two hundred forty-three million, two hundred eighty-eight thousand, four hundred forty-eight".