44355544640 has 112 divisors (see below), whose sum is σ = 115642119744. Its totient is φ = 16070707200.

The previous prime is 44355544603. The next prime is 44355544661. The reversal of 44355544640 is 4644555344.

It is a super-2 number, since 2×44355544640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 44355544591 and 44355544600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952295 + ... + 997785.

Almost surely, 2^44355544640 is an apocalyptic number.

44355544640 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 44355544640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57821059872).

44355544640 is an abundant number, since it is smaller than the sum of its proper divisors (71286575104).

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

44355544640 is a wasteful number, since it uses less digits than its factorization.

44355544640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45796 (or 45786 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

The spelling of 44355544640 in words is "forty-four billion, three hundred fifty-five million, five hundred forty-four thousand, six hundred forty".