20432010303240 has 64 divisors (see below), whose sum is σ = 61868891050560. Its totient is φ = 5397615179520.

The previous prime is 20432010303193. The next prime is 20432010303247. The reversal of 20432010303240 is 4230301023402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20432010303240.

It is not an unprimeable number, because it can be changed into a prime (20432010303247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795626191 + ... + 795651870.

It is an arithmetic number, because the mean of its divisors is an integer number (966701422665).

Almost surely, 2^{20432010303240} is an apocalyptic number.

20432010303240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20432010303240 is an abundant number, since it is smaller than the sum of its proper divisors (41436880747320).

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

20432010303240 is a wasteful number, since it uses less digits than its factorization.

20432010303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591278182 (or 1591278178 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20432010303240 its reverse (4230301023402), we get a palindrome (24662311326642).

The spelling of 20432010303240 in words is "twenty trillion, four hundred thirty-two billion, ten million, three hundred three thousand, two hundred forty".