18714216 has 32 divisors (see below), whose sum is σ = 46922400. Its totient is φ = 6219840.

The previous prime is 18714211. The next prime is 18714217. The reversal of 18714216 is 61241781.

It is not an unprimeable number, because it can be changed into a prime (18714211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9126 + ... + 10986.

It is an arithmetic number, because the mean of its divisors is an integer number (1466325).

Almost surely, 2^18714216 is an apocalyptic number.

It is an amenable number.

18714216 is an abundant number, since it is smaller than the sum of its proper divisors (28208184).

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

18714216 is a wasteful number, since it uses less digits than its factorization.

18714216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289 (or 2285 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 18714216 is about 4325.9930651817. The cubic root of 18714216 is about 265.4955294483.

Adding to 18714216 its reverse (61241781), we get a palindrome (79955997).

The spelling of 18714216 in words is "eighteen million, seven hundred fourteen thousand, two hundred sixteen".