3943434880 has 128 divisors (see below), whose sum is σ = 11753631360. Its totient is φ = 1229107200.

The previous prime is 3943434823. The next prime is 3943434883. The reversal of 3943434880 is 884343493.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×3943434880² = 31101357305601228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3943434880.

It is not an unprimeable number, because it can be changed into a prime (3943434883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9270 + ... + 89290.

It is an arithmetic number, because the mean of its divisors is an integer number (91825245).

Almost surely, 2^3943434880 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 3943434880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5876815680).

3943434880 is an abundant number, since it is smaller than the sum of its proper divisors (7810196480).

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

3943434880 is a wasteful number, since it uses less digits than its factorization.

3943434880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80058 (or 80046 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The square root of 3943434880 is about 62796.7744394567. The cubic root of 3943434880 is about 1579.8828733343.

The spelling of 3943434880 in words is "three billion, nine hundred forty-three million, four hundred thirty-four thousand, eight hundred eighty".