43320204040240 has 160 divisors (see below), whose sum is σ = 106643014410240. Its totient is φ = 16319951539200.

The previous prime is 43320204040237. The next prime is 43320204040271. The reversal of 43320204040240 is 4204040202334.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43320204040199 and 43320204040208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189781057 + ... + 190009183.

It is an arithmetic number, because the mean of its divisors is an integer number (666518840064).

Almost surely, 2^{43320204040240} is an apocalyptic number.

43320204040240 is a gapful number since it is divisible by the number (40) 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 43320204040240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53321507205120).

43320204040240 is an abundant number, since it is smaller than the sum of its proper divisors (63322810370000).

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

43320204040240 is a wasteful number, since it uses less digits than its factorization.

43320204040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228891 (or 228885 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 43320204040240 its reverse (4204040202334), we get a palindrome (47524244242574).

The spelling of 43320204040240 in words is "forty-three trillion, three hundred twenty billion, two hundred four million, forty thousand, two hundred forty".