42043034020 has 96 divisors (see below), whose sum is σ = 95981342688. Its totient is φ = 15377252352.

The previous prime is 42043034017. The next prime is 42043034071. The reversal of 42043034020 is 2043034024.

It can be written as a sum of positive squares in 16 ways, for example, as 18007492864 + 24035541156 = 134192^2 + 155034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42043033982 and 42043034000.

It is an unprimeable number.

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, 21976584 + ... + 21978496.

It is an arithmetic number, because the mean of its divisors is an integer number (999805653).

Almost surely, 2^42043034020 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 42043034020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47990671344).

42043034020 is an abundant number, since it is smaller than the sum of its proper divisors (53938308668).

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

42043034020 is a wasteful number, since it uses less digits than its factorization.

42043034020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 42043034020 its reverse (2043034024), we get a palindrome (44086068044).

The spelling of 42043034020 in words is "forty-two billion, forty-three million, thirty-four thousand, twenty".