4043242143220 has 144 divisors (see below), whose sum is σ = 10028312784000. Its totient is φ = 1365042260736.

The previous prime is 4043242143211. The next prime is 4043242143251. The reversal of 4043242143220 is 223412423404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196904074 + ... + 196924606.

It is an arithmetic number, because the mean of its divisors is an integer number (69641061000).

Almost surely, 2^{4043242143220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4043242143220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5014156392000).

4043242143220 is an abundant number, since it is smaller than the sum of its proper divisors (5985070640780).

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

4043242143220 is a wasteful number, since it uses less digits than its factorization.

4043242143220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23622 (or 23613 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4043242143220 its reverse (223412423404), we get a palindrome (4266654566624).

The spelling of 4043242143220 in words is "four trillion, forty-three billion, two hundred forty-two million, one hundred forty-three thousand, two hundred twenty".