18630108 has 96 divisors (see below), whose sum is σ = 58150400. Its totient is φ = 5038848.

The previous prime is 18630107. The next prime is 18630109. The reversal of 18630108 is 80103681.

18630108 is a `hidden beast` number, since 18 + 630 + 10 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (18630107) and next prime (18630109).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18630107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13716 + ... + 15012.

Almost surely, 2^18630108 is an apocalyptic number.

18630108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18630108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29075200).

18630108 is an abundant number, since it is smaller than the sum of its proper divisors (39520292).

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

18630108 is a wasteful number, since it uses less digits than its factorization.

18630108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18630108 is about 4316.2608818282. The cubic root of 18630108 is about 265.0971899352.

Adding to 18630108 its reverse (80103681), we get a palindrome (98733789).

The spelling of 18630108 in words is "eighteen million, six hundred thirty thousand, one hundred eight".