18845085 has 32 divisors (see below), whose sum is σ = 34820352. Its totient is φ = 8524800.

The previous prime is 18845059. The next prime is 18845089. The reversal of 18845085 is 58054881.

It is not a de Polignac number, because 18845085 - 2⁷ = 18844957 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18845089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9717 + ... + 11493.

It is an arithmetic number, because the mean of its divisors is an integer number (1088136).

Almost surely, 2^18845085 is an apocalyptic number.

18845085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18845085 is a deficient number, since it is larger than the sum of its proper divisors (15975267).

18845085 is a wasteful number, since it uses less digits than its factorization.

18845085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 18845085 is about 4341.0926044027. The cubic root of 18845085 is about 266.1129648145.

The spelling of 18845085 in words is "eighteen million, eight hundred forty-five thousand, eighty-five".