39731443448 has 8 divisors (see below), whose sum is σ = 74496456480. Its totient is φ = 19865721720.

The previous prime is 39731443399. The next prime is 39731443459. The reversal of 39731443448 is 84434413793.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 39731443396 and 39731443405.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2483215208 + ... + 2483215223.

It is an arithmetic number, because the mean of its divisors is an integer number (9312057060).

Almost surely, 2^39731443448 is an apocalyptic number.

It is an amenable number.

39731443448 is a deficient number, since it is larger than the sum of its proper divisors (34765013032).

39731443448 is a wasteful number, since it uses less digits than its factorization.

39731443448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966430437 (or 4966430433 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 50.

The spelling of 39731443448 in words is "thirty-nine billion, seven hundred thirty-one million, four hundred forty-three thousand, four hundred forty-eight".