38155885 has 8 divisors (see below), whose sum is σ = 47264256. Its totient is φ = 29539920.

The previous prime is 38155883. The next prime is 38155891. The reversal of 38155885 is 58855183.

38155885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38155885 - 2¹ = 38155883 is a prime.

It is a super-3 number, since 3×38155885³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38155883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 122929 + ... + 123238.

It is an arithmetic number, because the mean of its divisors is an integer number (5908032).

Almost surely, 2^38155885 is an apocalyptic number.

It is an amenable number.

38155885 is a deficient number, since it is larger than the sum of its proper divisors (9108371).

38155885 is a wasteful number, since it uses less digits than its factorization.

38155885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246203.

The product of its digits is 192000, while the sum is 43.

The square root of 38155885 is about 6177.0450055022. The cubic root of 38155885 is about 336.6566341269.

The spelling of 38155885 in words is "thirty-eight million, one hundred fifty-five thousand, eight hundred eighty-five".