200043500240 has 80 divisors (see below), whose sum is σ = 493529818320. Its totient is φ = 75146895360.

The previous prime is 200043500221. The next prime is 200043500243. The reversal of 200043500240 is 42005340002.

It can be written as a sum of positive squares in 8 ways, for example, as 10877655616 + 189165844624 = 104296^2 + 434932^2 .

It is a tau number, because it is divible by the number of its divisors (80).

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 (200043500243) 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 15 ways as a sum of consecutive naturals, for example, 467426 + ... + 786494.

It is an arithmetic number, because the mean of its divisors is an integer number (6169122729).

Almost surely, 2^200043500240 is an apocalyptic number.

200043500240 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 200043500240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246764909160).

200043500240 is an abundant number, since it is smaller than the sum of its proper divisors (293486318080).

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

200043500240 is a wasteful number, since it uses less digits than its factorization.

200043500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319560 (or 319554 counting only the distinct ones).

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

Adding to 200043500240 its reverse (42005340002), we get a palindrome (242048840242).

The spelling of 200043500240 in words is "two hundred billion, forty-three million, five hundred thousand, two hundred forty".