38638938 has 16 divisors (see below), whose sum is σ = 83222496. Its totient is φ = 11888880.

The previous prime is 38638931. The next prime is 38638939. The reversal of 38638938 is 83983683.

38638938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38638931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247608 + ... + 247763.

It is an arithmetic number, because the mean of its divisors is an integer number (5201406).

Almost surely, 2^38638938 is an apocalyptic number.

38638938 is an abundant number, since it is smaller than the sum of its proper divisors (44583558).

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

38638938 is a wasteful number, since it uses less digits than its factorization.

38638938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495389.

The product of its digits is 746496, while the sum is 48.

The square root of 38638938 is about 6216.0226833563. The cubic root of 38638938 is about 338.0713701511.

The spelling of 38638938 in words is "thirty-eight million, six hundred thirty-eight thousand, nine hundred thirty-eight".