4018855 has 8 divisors (see below), whose sum is σ = 4852512. Its totient is φ = 3195168.

The previous prime is 4018853. The next prime is 4018867. The reversal of 4018855 is 5588104.

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

It is a cyclic number.

It is not a de Polignac number, because 4018855 - 2¹ = 4018853 is a prime.

It is a super-4 number, since 4×4018855⁴ (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

4018855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018853) 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, 1572 + ... + 3241.

It is an arithmetic number, because the mean of its divisors is an integer number (606564).

Almost surely, 2^4018855 is an apocalyptic number.

4018855 is a deficient number, since it is larger than the sum of its proper divisors (833657).

4018855 is a wasteful number, since it uses less digits than its factorization.

4018855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 4018855 is about 2004.7082081939. The cubic root of 4018855 is about 158.9891347084.

The spelling of 4018855 in words is "four million, eighteen thousand, eight hundred fifty-five".