20440342425000 has 192 divisors, whose sum is σ = 63881066975040. Its totient is φ = 5449982720000.

The previous prime is 20440342424981. The next prime is 20440342425053. The reversal of 20440342425000 is 52424304402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692010232 + ... + 692039768.

It is an arithmetic number, because the mean of its divisors is an integer number (332713890495).

Almost surely, 2^{20440342425000} is an apocalyptic number.

20440342425000 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 20440342425000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31940533487520).

20440342425000 is an abundant number, since it is smaller than the sum of its proper divisors (43440724550040).

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

20440342425000 is an equidigital number, since it uses as much as digits as its factorization.

20440342425000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38798 (or 38774 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 20440342425000 its reverse (52424304402), we get a palindrome (20492766729402).

The spelling of 20440342425000 in words is "twenty trillion, four hundred forty billion, three hundred forty-two million, four hundred twenty-five thousand".