500043440000 has 320 divisors, whose sum is σ = 1419490805040. Its totient is φ = 173764608000.

The previous prime is 500043439943. The next prime is 500043440003. The reversal of 500043440000 is 44340005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500043440003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17665859 + ... + 17694141.

Almost surely, 2^500043440000 is an apocalyptic number.

500043440000 is a gapful number since it is divisible by the number (50) 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 500043440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709745402520).

500043440000 is an abundant number, since it is smaller than the sum of its proper divisors (919447365040).

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

500043440000 is a wasteful number, since it uses less digits than its factorization.

500043440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28347 (or 28320 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 500043440000 its reverse (44340005), we get a palindrome (500087780005).

The spelling of 500043440000 in words is "five hundred billion, forty-three million, four hundred forty thousand".