4018085 has 8 divisors (see below), whose sum is σ = 4843800. Its totient is φ = 3199744.

The previous prime is 4018081. The next prime is 4018087. The reversal of 4018085 is 5808104.

It can be written as a sum of positive squares in 4 ways, for example, as 148996 + 3869089 = 386^2 + 1967^2 .

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 4018085 - 2² = 4018081 is a prime.

It is a super-2 number, since 2×4018085² = 32290014134450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560 + ... + 2889.

It is an arithmetic number, because the mean of its divisors is an integer number (605475).

Almost surely, 2^4018085 is an apocalyptic number.

It is an amenable number.

4018085 is a deficient number, since it is larger than the sum of its proper divisors (825715).

4018085 is a wasteful number, since it uses less digits than its factorization.

4018085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 4018085 is about 2004.5161510948. The cubic root of 4018085 is about 158.9789801202.

The spelling of 4018085 in words is "four million, eighteen thousand, eighty-five".