18485338 has 8 divisors (see below), whose sum is σ = 27849780. Its totient is φ = 9202080.

The previous prime is 18485333. The next prime is 18485339. The reversal of 18485338 is 83358481.

It can be written as a sum of positive squares in 2 ways, for example, as 13300609 + 5184729 = 3647^2 + 2277^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 18485338.

It is not an unprimeable number, because it can be changed into a prime (18485333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19723 + ... + 20638.

Almost surely, 2^18485338 is an apocalyptic number.

18485338 is a deficient number, since it is larger than the sum of its proper divisors (9364442).

18485338 is a wasteful number, since it uses less digits than its factorization.

18485338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40592.

The product of its digits is 92160, while the sum is 40.

The square root of 18485338 is about 4299.4578728021. The cubic root of 18485338 is about 264.4087351579.

The spelling of 18485338 in words is "eighteen million, four hundred eighty-five thousand, three hundred thirty-eight".