38808305 has 4 divisors (see below), whose sum is σ = 46569972. Its totient is φ = 31046640.

The previous prime is 38808299. The next prime is 38808307. The reversal of 38808305 is 50380883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18386944 + 20421361 = 4288^2 + 4519^2 .

It is not a de Polignac number, because 38808305 - 2¹⁸ = 38546161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38808307) 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 3 ways as a sum of consecutive naturals, for example, 3880826 + ... + 3880835.

It is an arithmetic number, because the mean of its divisors is an integer number (11642493).

Almost surely, 2^38808305 is an apocalyptic number.

It is an amenable number.

38808305 is a deficient number, since it is larger than the sum of its proper divisors (7761667).

38808305 is an equidigital number, since it uses as much as digits as its factorization.

38808305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761666.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 38808305 is about 6229.6312089882. The cubic root of 38808305 is about 338.5646090056.

The spelling of 38808305 in words is "thirty-eight million, eight hundred eight thousand, three hundred five".