18008332 has 12 divisors (see below), whose sum is σ = 32185440. Its totient is φ = 8812496.

The previous prime is 18008311. The next prime is 18008339. The reversal of 18008332 is 23380081.

It is a junction number, because it is equal to n+sod(n) for n = 18008297 and 18008306.

It is not an unprimeable number, because it can be changed into a prime (18008339) 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, 47707 + ... + 48082.

It is an arithmetic number, because the mean of its divisors is an integer number (2682120).

Almost surely, 2^18008332 is an apocalyptic number.

It is an amenable number.

18008332 is a deficient number, since it is larger than the sum of its proper divisors (14177108).

18008332 is a wasteful number, since it uses less digits than its factorization.

18008332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95840 (or 95838 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18008332 is about 4243.6225091306. The cubic root of 18008332 is about 262.1145702523.

The spelling of 18008332 in words is "eighteen million, eight thousand, three hundred thirty-two".