18058205 has 8 divisors (see below), whose sum is σ = 23639904. Its totient is φ = 13133200.

The previous prime is 18058193. The next prime is 18058207. The reversal of 18058205 is 50285081.

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

It is not a de Polignac number, because 18058205 - 2⁶ = 18058141 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18058207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164111 + ... + 164220.

It is an arithmetic number, because the mean of its divisors is an integer number (2954988).

Almost surely, 2^18058205 is an apocalyptic number.

It is an amenable number.

18058205 is a deficient number, since it is larger than the sum of its proper divisors (5581699).

18058205 is a wasteful number, since it uses less digits than its factorization.

18058205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328347.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 18058205 is about 4249.4946758409. The cubic root of 18058205 is about 262.3563174375.

It can be divided in two parts, 180 and 58205, that added together give a palindrome (58385).

The spelling of 18058205 in words is "eighteen million, fifty-eight thousand, two hundred five".