18669108 has 12 divisors (see below), whose sum is σ = 43561280. Its totient is φ = 6223032.

The previous prime is 18669103. The next prime is 18669113. The reversal of 18669108 is 80196681.

It is an interprime number because it is at equal distance from previous prime (18669103) and next prime (18669113).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18669103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777868 + ... + 777891.

Almost surely, 2^18669108 is an apocalyptic number.

It is an amenable number.

18669108 is an abundant number, since it is smaller than the sum of its proper divisors (24892172).

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

18669108 is a wasteful number, since it uses less digits than its factorization.

18669108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555766 (or 1555764 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 18669108 is about 4320.7763191353. The cubic root of 18669108 is about 265.2820445521.

The spelling of 18669108 in words is "eighteen million, six hundred sixty-nine thousand, one hundred eight".