18827008 has 36 divisors (see below), whose sum is σ = 37858968. Its totient is φ = 9344000.

The previous prime is 18826993. The next prime is 18827009. The reversal of 18827008 is 80072881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18827009) 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, 64110 + ... + 64402.

It is an arithmetic number, because the mean of its divisors is an integer number (1051638).

Almost surely, 2^18827008 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 18827008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18929484).

18827008 is an abundant number, since it is smaller than the sum of its proper divisors (19031960).

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

18827008 is an equidigital number, since it uses as much as digits as its factorization.

18827008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 18827008 is about 4339.0100253399. The cubic root of 18827008 is about 266.0278486681.

Adding to 18827008 its reverse (80072881), we get a palindrome (98899889).

The spelling of 18827008 in words is "eighteen million, eight hundred twenty-seven thousand, eight".