18744108 has 48 divisors (see below), whose sum is σ = 46368000. Its totient is φ = 5876928.

The previous prime is 18744107. The next prime is 18744109. The reversal of 18744108 is 80144781.

It is an interprime number because it is at equal distance from previous prime (18744107) and next prime (18744109).

It is not an unprimeable number, because it can be changed into a prime (18744107) 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, 52033 + ... + 52391.

It is an arithmetic number, because the mean of its divisors is an integer number (966000).

Almost surely, 2^18744108 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 18744108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23184000).

18744108 is an abundant number, since it is smaller than the sum of its proper divisors (27623892).

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

18744108 is a wasteful number, since it uses less digits than its factorization.

18744108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 18744108 is about 4329.4466159083. The cubic root of 18744108 is about 265.6368118946.

Adding to 18744108 its reverse (80144781), we get a palindrome (98888889).

The spelling of 18744108 in words is "eighteen million, seven hundred forty-four thousand, one hundred eight".