18033116 has 12 divisors (see below), whose sum is σ = 31588032. Its totient is φ = 9007968.

The previous prime is 18033083. The next prime is 18033133. The reversal of 18033116 is 61133081.

It is a junction number, because it is equal to n+sod(n) for n = 18033091 and 18033100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6056 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (2632336).

Almost surely, 2^18033116 is an apocalyptic number.

It is an amenable number.

18033116 is a deficient number, since it is larger than the sum of its proper divisors (13554916).

18033116 is a wasteful number, since it uses less digits than its factorization.

18033116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 18033116 is about 4246.5416517444. The cubic root of 18033116 is about 262.2347603515.

Adding to 18033116 its reverse (61133081), we get a palindrome (79166197).

The spelling of 18033116 in words is "eighteen million, thirty-three thousand, one hundred sixteen".