38665109 has 8 divisors (see below), whose sum is σ = 44811648. Its totient is φ = 32674320.

The previous prime is 38665079. The next prime is 38665129. The reversal of 38665109 is 90156683.

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

It is not a de Polignac number, because 38665109 - 2²⁰ = 37616533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38665129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38402 + ... + 39395.

It is an arithmetic number, because the mean of its divisors is an integer number (5601456).

Almost surely, 2^38665109 is an apocalyptic number.

It is an amenable number.

38665109 is a deficient number, since it is larger than the sum of its proper divisors (6146539).

38665109 is an equidigital number, since it uses as much as digits as its factorization.

38665109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77875.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 38665109 is about 6218.1274512509. The cubic root of 38665109 is about 338.1476806422.

The spelling of 38665109 in words is "thirty-eight million, six hundred sixty-five thousand, one hundred nine".