38611538 has 16 divisors (see below), whose sum is σ = 66441984. Its totient is φ = 16485120.

The previous prime is 38611537. The next prime is 38611541. The reversal of 38611538 is 83511683.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 38611498 and 38611507.

It is not an unprimeable number, because it can be changed into a prime (38611537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295 + ... + 8882.

It is an arithmetic number, because the mean of its divisors is an integer number (4152624).

Almost surely, 2^38611538 is an apocalyptic number.

38611538 is a deficient number, since it is larger than the sum of its proper divisors (27830446).

38611538 is a wasteful number, since it uses less digits than its factorization.

38611538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10457.

The product of its digits is 17280, while the sum is 35.

The square root of 38611538 is about 6213.8183108295. The cubic root of 38611538 is about 337.9914391585.

The spelling of 38611538 in words is "thirty-eight million, six hundred eleven thousand, five hundred thirty-eight".