18290008 has 32 divisors (see below), whose sum is σ = 39384000. Its totient is φ = 7875360.

The previous prime is 18289993. The next prime is 18290017. The reversal of 18290008 is 80009281.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3798 + ... + 7141.

It is an arithmetic number, because the mean of its divisors is an integer number (1230750).

Almost surely, 2^18290008 is an apocalyptic number.

It is an amenable number.

18290008 is an abundant number, since it is smaller than the sum of its proper divisors (21093992).

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

18290008 is a wasteful number, since it uses less digits than its factorization.

18290008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10975 (or 10971 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 18290008 is about 4276.6818913733. The cubic root of 18290008 is about 263.4741215147.

Adding to 18290008 its reverse (80009281), we get a palindrome (98299289).

The spelling of 18290008 in words is "eighteen million, two hundred ninety thousand, eight".