4043421012 has 24 divisors (see below), whose sum is σ = 9437262912. Its totient is φ = 1347433600.

The previous prime is 4043421007. The next prime is 4043421023. The reversal of 4043421012 is 2101243404.

It is a self number, because there is not a number n which added to its sum of digits gives 4043421012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337 + ... + 89927.

It is an arithmetic number, because the mean of its divisors is an integer number (393219288).

Almost surely, 2^4043421012 is an apocalyptic number.

It is an amenable number.

4043421012 is an abundant number, since it is smaller than the sum of its proper divisors (5393841900).

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

4043421012 is a wasteful number, since it uses less digits than its factorization.

4043421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93359 (or 93357 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4043421012 is about 63587.8998866923. The cubic root of 4043421012 is about 1593.1242726624.

Adding to 4043421012 its reverse (2101243404), we get a palindrome (6144664416).

The spelling of 4043421012 in words is "four billion, forty-three million, four hundred twenty-one thousand, twelve".