8938138448 has 20 divisors (see below), whose sum is σ = 17611164480. Its totient is φ = 4393321824.

The previous prime is 8938138439. The next prime is 8938138481. The reversal of 8938138448 is 8448318398.

It is a junction number, because it is equal to n+sod(n) for n = 8938138393 and 8938138402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4733240 + ... + 4735127.

It is an arithmetic number, because the mean of its divisors is an integer number (880558224).

Almost surely, 2^8938138448 is an apocalyptic number.

It is an amenable number.

8938138448 is a deficient number, since it is larger than the sum of its proper divisors (8673026032).

8938138448 is a wasteful number, since it uses less digits than its factorization.

8938138448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468434 (or 9468428 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The square root of 8938138448 is about 94541.7286070019. The cubic root of 8938138448 is about 2075.3070391346.

The spelling of 8938138448 in words is "eight billion, nine hundred thirty-eight million, one hundred thirty-eight thousand, four hundred forty-eight".