18585042 has 16 divisors (see below), whose sum is σ = 42480192. Its totient is φ = 5310000.

The previous prime is 18585041. The next prime is 18585067. The reversal of 18585042 is 24058581.

It is a super-2 number, since 2×18585042² = 690807572283528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18584994 and 18585012.

It is not an unprimeable number, because it can be changed into a prime (18585041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 221209 + ... + 221292.

It is an arithmetic number, because the mean of its divisors is an integer number (2655012).

Almost surely, 2^18585042 is an apocalyptic number.

18585042 is an abundant number, since it is smaller than the sum of its proper divisors (23895150).

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

18585042 is a wasteful number, since it uses less digits than its factorization.

18585042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442513.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 18585042 is about 4311.0372301802. The cubic root of 18585042 is about 264.8832617419.

The spelling of 18585042 in words is "eighteen million, five hundred eighty-five thousand, forty-two".