38690385 has 32 divisors (see below), whose sum is σ = 66500352. Its totient is φ = 19138560.

The previous prime is 38690363. The next prime is 38690401. The reversal of 38690385 is 58309683.

38690385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38690385 - 2¹⁰ = 38689361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17037 + ... + 19173.

It is an arithmetic number, because the mean of its divisors is an integer number (2078136).

Almost surely, 2^38690385 is an apocalyptic number.

It is an amenable number.

38690385 is a deficient number, since it is larger than the sum of its proper divisors (27809967).

38690385 is a wasteful number, since it uses less digits than its factorization.

38690385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 38690385 is about 6220.1595638697. The cubic root of 38690385 is about 338.2213487738.

The spelling of 38690385 in words is "thirty-eight million, six hundred ninety thousand, three hundred eighty-five".