538885385 has 16 divisors (see below), whose sum is σ = 663707520. Its totient is φ = 419892480.

The previous prime is 538885379. The next prime is 538885421. The reversal of 538885385 is 583588835.

It is a de Polignac number, because none of the positive numbers 2^k-538885385 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 15 ways as a sum of consecutive naturals, for example, 20321 + ... + 38609.

It is an arithmetic number, because the mean of its divisors is an integer number (41481720).

Almost surely, 2^538885385 is an apocalyptic number.

It is an amenable number.

538885385 is a deficient number, since it is larger than the sum of its proper divisors (124822135).

538885385 is a wasteful number, since it uses less digits than its factorization.

538885385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18448.

The product of its digits is 4608000, while the sum is 53.

The square root of 538885385 is about 23213.9049924824. The cubic root of 538885385 is about 813.7646155989.

The spelling of 538885385 in words is "five hundred thirty-eight million, eight hundred eighty-five thousand, three hundred eighty-five".