18672108 has 48 divisors (see below), whose sum is σ = 53625600. Its totient is φ = 4924224.

The previous prime is 18672107. The next prime is 18672109. The reversal of 18672108 is 80127681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18672107) and next prime (18672109).

It is not an unprimeable number, because it can be changed into a prime (18672107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7458 + ... + 9641.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^18672108 is an apocalyptic number.

It is an amenable number.

18672108 is an abundant number, since it is smaller than the sum of its proper divisors (34953492).

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

18672108 is a wasteful number, since it uses less digits than its factorization.

18672108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17126 (or 17124 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 18672108 is about 4321.1234650262. The cubic root of 18672108 is about 265.2962534707.

Adding to 18672108 its reverse (80127681), we get a palindrome (98799789).

The spelling of 18672108 in words is "eighteen million, six hundred seventy-two thousand, one hundred eight".