43144441020 has 144 divisors (see below), whose sum is σ = 137578852320. Its totient is φ = 11347485696.

The previous prime is 43144440979. The next prime is 43144441031. The reversal of 43144441020 is 2014444134.

It is a super-2 number, since 2×43144441020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293976 + ... + 415584.

Almost surely, 2^43144441020 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 43144441020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68789426160).

43144441020 is an abundant number, since it is smaller than the sum of its proper divisors (94434411300).

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

43144441020 is a wasteful number, since it uses less digits than its factorization.

43144441020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121706 (or 121692 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 43144441020 its reverse (2014444134), we get a palindrome (45158885154).

The spelling of 43144441020 in words is "forty-three billion, one hundred forty-four million, four hundred forty-one thousand, twenty".