18085260 has 48 divisors (see below), whose sum is σ = 50835456. Its totient is φ = 4804032.

The previous prime is 18085259. The next prime is 18085273. The reversal of 18085260 is 6258081.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 22587 + ... + 23373.

It is an arithmetic number, because the mean of its divisors is an integer number (1059072).

Almost surely, 2^18085260 is an apocalyptic number.

18085260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18085260 is an abundant number, since it is smaller than the sum of its proper divisors (32750196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18085260 is a wasteful number, since it uses less digits than its factorization.

18085260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 18085260 is about 4252.6768040847. The cubic root of 18085260 is about 262.4872737594.

The spelling of 18085260 in words is "eighteen million, eighty-five thousand, two hundred sixty".