44000439993 has 24 divisors (see below), whose sum is σ = 64805312520. Its totient is φ = 28757963520.

The previous prime is 44000439991. The next prime is 44000440013. The reversal of 44000439993 is 39993400044.

It can be written as a sum of positive squares in 4 ways, for example, as 7669030329 + 36331409664 = 87573^2 + 190608^2 .

It is not a de Polignac number, because 44000439993 - 2¹ = 44000439991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44000439991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595203 + ... + 665031.

It is an arithmetic number, because the mean of its divisors is an integer number (2700221355).

Almost surely, 2^44000439993 is an apocalyptic number.

It is an amenable number.

44000439993 is a deficient number, since it is larger than the sum of its proper divisors (20804872527).

44000439993 is a wasteful number, since it uses less digits than its factorization.

44000439993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71209 (or 71206 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 44000439993 in words is "forty-four billion, four hundred thirty-nine thousand, nine hundred ninety-three".