38508638 has 32 divisors (see below), whose sum is σ = 71803584. Its totient is φ = 15109632.

The previous prime is 38508619. The next prime is 38508677. The reversal of 38508638 is 83680583.

38508638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38508595 and 38508604.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6620 + ... + 10992.

It is an arithmetic number, because the mean of its divisors is an integer number (2243862).

Almost surely, 2^38508638 is an apocalyptic number.

38508638 is a deficient number, since it is larger than the sum of its proper divisors (33294946).

38508638 is a wasteful number, since it uses less digits than its factorization.

38508638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 38508638 is about 6205.5328538329. The cubic root of 38508638 is about 337.6909222455.

The spelling of 38508638 in words is "thirty-eight million, five hundred eight thousand, six hundred thirty-eight".