18411008 has 80 divisors (see below), whose sum is σ = 45961344. Its totient is φ = 7157760.

The previous prime is 18410989. The next prime is 18411011. The reversal of 18411008 is 80011481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39191 + ... + 39657.

Almost surely, 2^18411008 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 18411008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22980672).

18411008 is an abundant number, since it is smaller than the sum of its proper divisors (27550336).

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

18411008 is an equidigital number, since it uses as much as digits as its factorization.

18411008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 18411008 is about 4290.8050526679. The cubic root of 18411008 is about 264.0538610644.

Adding to 18411008 its reverse (80011481), we get a palindrome (98422489).

The spelling of 18411008 in words is "eighteen million, four hundred eleven thousand, eight".