39944594393 has 8 divisors (see below), whose sum is σ = 44981596416. Its totient is φ = 35141871600.

The previous prime is 39944594369. The next prime is 39944594399. The reversal of 39944594393 is 39349544993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39944594393 - 2⁶ = 39944594329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39944594399) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 58569446 + ... + 58570127.

It is an arithmetic number, because the mean of its divisors is an integer number (5622699552).

Almost surely, 2^39944594393 is an apocalyptic number.

It is an amenable number.

39944594393 is a deficient number, since it is larger than the sum of its proper divisors (5037002023).

39944594393 is a wasteful number, since it uses less digits than its factorization.

39944594393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117139615.

The product of its digits is 56687040, while the sum is 62.

The spelling of 39944594393 in words is "thirty-nine billion, nine hundred forty-four million, five hundred ninety-four thousand, three hundred ninety-three".