18034216 has 16 divisors (see below), whose sum is σ = 33860340. Its totient is φ = 9004800.

The previous prime is 18034193. The next prime is 18034217. The reversal of 18034216 is 61243081.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 1664100 = 4046^2 + 1290^2 .

It is not an unprimeable number, because it can be changed into a prime (18034217) 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, 8670 + ... + 10546.

Almost surely, 2^18034216 is an apocalyptic number.

It is an amenable number.

18034216 is a deficient number, since it is larger than the sum of its proper divisors (15826124).

18034216 is a wasteful number, since it uses less digits than its factorization.

18034216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084 (or 3080 counting only the distinct ones).

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

The square root of 18034216 is about 4246.6711669259. The cubic root of 18034216 is about 262.2400922525.

Adding to 18034216 its reverse (61243081), we get a palindrome (79277297).

The spelling of 18034216 in words is "eighteen million, thirty-four thousand, two hundred sixteen".