18435085 has 8 divisors (see below), whose sum is σ = 22148856. Its totient is φ = 14730240.

The previous prime is 18435059. The next prime is 18435091. The reversal of 18435085 is 58053481.

It can be written as a sum of positive squares in 4 ways, for example, as 2064969 + 16370116 = 1437^2 + 4046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18435085 - 2⁷ = 18434957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18435085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3805 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (2768607).

Almost surely, 2^18435085 is an apocalyptic number.

It is an amenable number.

18435085 is a deficient number, since it is larger than the sum of its proper divisors (3713771).

18435085 is a wasteful number, since it uses less digits than its factorization.

18435085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 18435085 is about 4293.6097866481. The cubic root of 18435085 is about 264.1689164239.

The spelling of 18435085 in words is "eighteen million, four hundred thirty-five thousand, eighty-five".