44432531440 has 160 divisors (see below), whose sum is σ = 119484227520. Its totient is φ = 15186739200.

The previous prime is 44432531413. The next prime is 44432531443. The reversal of 44432531440 is 4413523444.

44432531440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 44432531396 and 44432531405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44432531443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15272706 + ... + 15275614.

It is an arithmetic number, because the mean of its divisors is an integer number (746776422).

Almost surely, 2^44432531440 is an apocalyptic number.

44432531440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44432531440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59742113760).

44432531440 is an abundant number, since it is smaller than the sum of its proper divisors (75051696080).

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

44432531440 is a wasteful number, since it uses less digits than its factorization.

44432531440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971 (or 3965 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

The spelling of 44432531440 in words is "forty-four billion, four hundred thirty-two million, five hundred thirty-one thousand, four hundred forty".