18844008 has 16 divisors (see below), whose sum is σ = 47110080. Its totient is φ = 6281328.

The previous prime is 18844003. The next prime is 18844009. The reversal of 18844008 is 80044881.

It is a self number, because there is not a number n which added to its sum of digits gives 18844008.

It is not an unprimeable number, because it can be changed into a prime (18844003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392560 + ... + 392607.

It is an arithmetic number, because the mean of its divisors is an integer number (2944380).

Almost surely, 2^18844008 is an apocalyptic number.

It is an amenable number.

18844008 is an abundant number, since it is smaller than the sum of its proper divisors (28266072).

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

18844008 is a wasteful number, since it uses less digits than its factorization.

18844008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785176 (or 785172 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 18844008 is about 4340.9685555185. The cubic root of 18844008 is about 266.1078952500.

Adding to 18844008 its reverse (80044881), we get a palindrome (98888889).

The spelling of 18844008 in words is "eighteen million, eight hundred forty-four thousand, eight".