38389385 has 4 divisors (see below), whose sum is σ = 46067268. Its totient is φ = 30711504.

The previous prime is 38389361. The next prime is 38389397. The reversal of 38389385 is 58398383.

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 27962944 + 10426441 = 5288^2 + 3229^2 .

It is a cyclic number.

It is not a de Polignac number, because 38389385 - 2¹² = 38385289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 3838934 + ... + 3838943.

It is an arithmetic number, because the mean of its divisors is an integer number (11516817).

Almost surely, 2^38389385 is an apocalyptic number.

It is an amenable number.

38389385 is a deficient number, since it is larger than the sum of its proper divisors (7677883).

38389385 is an equidigital number, since it uses as much as digits as its factorization.

38389385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677882.

The product of its digits is 622080, while the sum is 47.

The square root of 38389385 is about 6195.9168006034. The cubic root of 38389385 is about 337.3419763192.

The spelling of 38389385 in words is "thirty-eight million, three hundred eighty-nine thousand, three hundred eighty-five".