43143444416 has 56 divisors (see below), whose sum is σ = 86619252720. Its totient is φ = 21318912000.

The previous prime is 43143444401. The next prime is 43143444451. The reversal of 43143444416 is 61444434134.

It is a super-2 number, since 2×43143444416² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43143444416.

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, 3685100 + ... + 3696788.

It is an arithmetic number, because the mean of its divisors is an integer number (1546772370).

Almost surely, 2^43143444416 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 43143444416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43309626360).

43143444416 is an abundant number, since it is smaller than the sum of its proper divisors (43475808304).

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

43143444416 is a wasteful number, since it uses less digits than its factorization.

43143444416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12373 (or 12363 counting only the distinct ones).

The product of its digits is 221184, while the sum is 38.

The spelling of 43143444416 in words is "forty-three billion, one hundred forty-three million, four hundred forty-four thousand, four hundred sixteen".