4143240420 has 96 divisors (see below), whose sum is σ = 12772045440. Its totient is φ = 995189760.

The previous prime is 4143240419. The next prime is 4143240421. The reversal of 4143240420 is 240423414.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4143240419) and next prime (4143240421).

It is not an unprimeable number, because it can be changed into a prime (4143240421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43144 + ... + 100736.

It is an arithmetic number, because the mean of its divisors is an integer number (133042140).

Almost surely, 2^4143240420 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 4143240420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6386022720).

4143240420 is an abundant number, since it is smaller than the sum of its proper divisors (8628805020).

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

4143240420 is a wasteful number, since it uses less digits than its factorization.

4143240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57725 (or 57723 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4143240420 is about 64368.0077367631. The cubic root of 4143240420 is about 1606.1275992262.

Adding to 4143240420 its reverse (240423414), we get a palindrome (4383663834).

The spelling of 4143240420 in words is "four billion, one hundred forty-three million, two hundred forty thousand, four hundred twenty".