18145608 has 64 divisors (see below), whose sum is σ = 51441600. Its totient is φ = 5287680.

The previous prime is 18145529. The next prime is 18145637. The reversal of 18145608 is 80654181.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4398 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (803775).

Almost surely, 2^18145608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18145608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25720800).

18145608 is an abundant number, since it is smaller than the sum of its proper divisors (33295992).

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

18145608 is a wasteful number, since it uses less digits than its factorization.

18145608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 18145608 is about 4259.7661907668. The cubic root of 18145608 is about 262.7789108037.

Adding to 18145608 its reverse (80654181), we get a palindrome (98799789).

The spelling of 18145608 in words is "eighteen million, one hundred forty-five thousand, six hundred eight".