44381928240 has 960 divisors, whose sum is σ = 178631424000. Its totient is φ = 10218783744.

The previous prime is 44381928233. The next prime is 44381928247. The reversal of 44381928240 is 4282918344.

44381928240 is a `hidden beast` number, since 4 + 4 + 381 + 9 + 28 + 240 = 666.

It is an interprime number because it is at equal distance from previous prime (44381928233) and next prime (44381928247).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (44381928247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 561796521 + ... + 561796599.

It is an arithmetic number, because the mean of its divisors is an integer number (186074400).

Almost surely, 2^44381928240 is an apocalyptic number.

44381928240 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 44381928240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89315712000).

44381928240 is an abundant number, since it is smaller than the sum of its proper divisors (134249495760).

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

44381928240 is a wasteful number, since it uses less digits than its factorization.

44381928240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 44381928240 in words is "forty-four billion, three hundred eighty-one million, nine hundred twenty-eight thousand, two hundred forty".