16918018 has 32 divisors (see below), whose sum is σ = 30038400. Its totient is φ = 7070976.

The previous prime is 16918007. The next prime is 16918063. The reversal of 16918018 is 81081961.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10618 + ... + 12106.

It is an arithmetic number, because the mean of its divisors is an integer number (938700).

Almost surely, 2^16918018 is an apocalyptic number.

16918018 is a deficient number, since it is larger than the sum of its proper divisors (13120382).

16918018 is a wasteful number, since it uses less digits than its factorization.

16918018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 16918018 is about 4113.1518328406. The cubic root of 16918018 is about 256.7141618596.

Adding to 16918018 its reverse (81081961), we get a palindrome (97999979).

The spelling of 16918018 in words is "sixteen million, nine hundred eighteen thousand, eighteen".