20043340032 has 72 divisors (see below), whose sum is σ = 54645685920. Its totient is φ = 6518149120.

The previous prime is 20043340019. The next prime is 20043340033. The reversal of 20043340032 is 23004334002.

It is a super-2 number, since 2×20043340032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20043339990 and 20043340008.

It is not an unprimeable number, because it can be changed into a prime (20043340033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286782 + ... + 349757.

It is an arithmetic number, because the mean of its divisors is an integer number (758967860).

Almost surely, 2^20043340032 is an apocalyptic number.

It is an amenable number.

20043340032 is an abundant number, since it is smaller than the sum of its proper divisors (34602345888).

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

20043340032 is an equidigital number, since it uses as much as digits as its factorization.

20043340032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636599 (or 636585 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20043340032 its reverse (23004334002), we get a palindrome (43047674034).

The spelling of 20043340032 in words is "twenty billion, forty-three million, three hundred forty thousand, thirty-two".