38915538 has 8 divisors (see below), whose sum is σ = 77831088. Its totient is φ = 12971844.

The previous prime is 38915537. The next prime is 38915551. The reversal of 38915538 is 83551983.

38915538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

38915538 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38915538.

It is not an unprimeable number, because it can be changed into a prime (38915531) 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 3 ways as a sum of consecutive naturals, for example, 3242956 + ... + 3242967.

It is an arithmetic number, because the mean of its divisors is an integer number (9728886).

Almost surely, 2^38915538 is an apocalyptic number.

38915538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38915538 is a wasteful number, since it uses less digits than its factorization.

38915538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485928.

The product of its digits is 129600, while the sum is 42.

The square root of 38915538 is about 6238.2319610608. The cubic root of 38915538 is about 338.8761566757.

The spelling of 38915538 in words is "thirty-eight million, nine hundred fifteen thousand, five hundred thirty-eight".