18059605 has 16 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 13706560.

The previous prime is 18059579. The next prime is 18059617. The reversal of 18059605 is 50695081.

It is not a de Polignac number, because 18059605 - 2¹³ = 18051413 is a prime.

It is a super-2 number, since 2×18059605² = 652298665512050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7500 + ... + 9610.

It is an arithmetic number, because the mean of its divisors is an integer number (1425600).

Almost surely, 2^18059605 is an apocalyptic number.

It is an amenable number.

18059605 is a deficient number, since it is larger than the sum of its proper divisors (4749995).

18059605 is a wasteful number, since it uses less digits than its factorization.

18059605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 18059605 is about 4249.6593981165. The cubic root of 18059605 is about 262.3630971692.

The spelling of 18059605 in words is "eighteen million, fifty-nine thousand, six hundred five".