38385109 has 4 divisors (see below), whose sum is σ = 43868704. Its totient is φ = 32901516.

The previous prime is 38385107. The next prime is 38385157. The reversal of 38385109 is 90158383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38385109 - 2¹ = 38385107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38385107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741787 + ... + 2741800.

It is an arithmetic number, because the mean of its divisors is an integer number (10967176).

Almost surely, 2^38385109 is an apocalyptic number.

It is an amenable number.

38385109 is a deficient number, since it is larger than the sum of its proper divisors (5483595).

38385109 is an equidigital number, since it uses as much as digits as its factorization.

38385109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483594.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 38385109 is about 6195.5717250307. The cubic root of 38385109 is about 337.3294509136.

The spelling of 38385109 in words is "thirty-eight million, three hundred eighty-five thousand, one hundred nine".