18008676 has 144 divisors (see below), whose sum is σ = 56306880. Its totient is φ = 4959360.

The previous prime is 18008663. The next prime is 18008687. The reversal of 18008676 is 67680081.

It is a super-2 number, since 2×18008676² = 648624822545952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18008676.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216931 + ... + 217013.

It is an arithmetic number, because the mean of its divisors is an integer number (391020).

Almost surely, 2^18008676 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 18008676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28153440).

18008676 is an abundant number, since it is smaller than the sum of its proper divisors (38298204).

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

18008676 is a wasteful number, since it uses less digits than its factorization.

18008676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 18008676 is about 4243.6630403462. The cubic root of 18008676 is about 262.1162392360.

The spelling of 18008676 in words is "eighteen million, eight thousand, six hundred seventy-six".