9638938416 has 40 divisors (see below), whose sum is σ = 25251312384. Its totient is φ = 3167725120.

The previous prime is 9638938391. The next prime is 9638938427. The reversal of 9638938416 is 6148398369.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410756 + ... + 1417571.

Almost surely, 2^9638938416 is an apocalyptic number.

It is an amenable number.

9638938416 is an abundant number, since it is smaller than the sum of its proper divisors (15612373968).

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

9638938416 is a wasteful number, since it uses less digits than its factorization.

9638938416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828409 (or 2828403 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The square root of 9638938416 is about 98178.0953981080. The cubic root of 9638938416 is about 2128.1867510460.

The spelling of 9638938416 in words is "nine billion, six hundred thirty-eight million, nine hundred thirty-eight thousand, four hundred sixteen".