20424534452000 has 192 divisors, whose sum is σ = 57390882441984. Its totient is φ = 6997961318400.

The previous prime is 20424534451889. The next prime is 20424534452009. The reversal of 20424534452000 is 25443542402.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (20424534452009) 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, 41278064 + ... + 41769936.

It is an arithmetic number, because the mean of its divisors is an integer number (298910846052).

Almost surely, 2^{20424534452000} is an apocalyptic number.

20424534452000 is a gapful number since it is divisible by the number (20) 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 20424534452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28695441220992).

20424534452000 is an abundant number, since it is smaller than the sum of its proper divisors (36966347989984).

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

20424534452000 is a wasteful number, since it uses less digits than its factorization.

20424534452000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493388 (or 493370 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 20424534452000 its reverse (25443542402), we get a palindrome (20449977994402).

The spelling of 20424534452000 in words is "twenty trillion, four hundred twenty-four billion, five hundred thirty-four million, four hundred fifty-two thousand".