18485308 has 6 divisors (see below), whose sum is σ = 32349296. Its totient is φ = 9242652.

The previous prime is 18485303. The next prime is 18485317. The reversal of 18485308 is 80358481.

It is a super-2 number, since 2×18485308² = 683413223709728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310660 + ... + 2310667.

Almost surely, 2^18485308 is an apocalyptic number.

It is an amenable number.

18485308 is a deficient number, since it is larger than the sum of its proper divisors (13863988).

18485308 is a wasteful number, since it uses less digits than its factorization.

18485308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621331 (or 4621329 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 18485308 is about 4299.4543839887. The cubic root of 18485308 is about 264.4085921208.

The spelling of 18485308 in words is "eighteen million, four hundred eighty-five thousand, three hundred eight".