18325008 has 120 divisors (see below), whose sum is σ = 57183840. Its totient is φ = 5616000.

The previous prime is 18325007. The next prime is 18325019. The reversal of 18325008 is 80052381.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (18325001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72883 + ... + 73133.

It is an arithmetic number, because the mean of its divisors is an integer number (476532).

Almost surely, 2^18325008 is an apocalyptic number.

18325008 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 18325008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28591920).

18325008 is an abundant number, since it is smaller than the sum of its proper divisors (38858832).

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

18325008 is a wasteful number, since it uses less digits than its factorization.

18325008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 18325008 is about 4280.7718930118. The cubic root of 18325008 is about 263.6420769417.

Adding to 18325008 its reverse (80052381), we get a palindrome (98377389).

The spelling of 18325008 in words is "eighteen million, three hundred twenty-five thousand, eight".