18074585 has 4 divisors (see below), whose sum is σ = 21689508. Its totient is φ = 14459664.

The previous prime is 18074579. The next prime is 18074593. The reversal of 18074585 is 58547081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11744329 + 6330256 = 3427^2 + 2516^2 .

It is a cyclic number.

It is not a de Polignac number, because 18074585 - 2¹⁶ = 18009049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1807454 + ... + 1807463.

It is an arithmetic number, because the mean of its divisors is an integer number (5422377).

Almost surely, 2^18074585 is an apocalyptic number.

It is an amenable number.

18074585 is a deficient number, since it is larger than the sum of its proper divisors (3614923).

18074585 is an equidigital number, since it uses as much as digits as its factorization.

18074585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614922.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 18074585 is about 4251.4215269719. The cubic root of 18074585 is about 262.4356183756.

The spelling of 18074585 in words is "eighteen million, seventy-four thousand, five hundred eighty-five".