20324132040 has 128 divisors (see below), whose sum is σ = 64256457600. Its totient is φ = 5128519680.

The previous prime is 20324132029. The next prime is 20324132047. The reversal of 20324132040 is 4023142302.

It is a junction number, because it is equal to n+sod(n) for n = 20324131998 and 20324132016.

It is not an unprimeable number, because it can be changed into a prime (20324132047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2140744 + ... + 2150216.

It is an arithmetic number, because the mean of its divisors is an integer number (502003575).

Almost surely, 2^20324132040 is an apocalyptic number.

20324132040 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 20324132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32128228800).

20324132040 is an abundant number, since it is smaller than the sum of its proper divisors (43932325560).

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

20324132040 is a wasteful number, since it uses less digits than its factorization.

20324132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447 (or 10443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20324132040 its reverse (4023142302), we get a palindrome (24347274342).

The spelling of 20324132040 in words is "twenty billion, three hundred twenty-four million, one hundred thirty-two thousand, forty".