16810218 has 24 divisors (see below), whose sum is σ = 36779808. Its totient is φ = 5548392.

The previous prime is 16810201. The next prime is 16810249. The reversal of 16810218 is 81201861.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16810191 and 16810200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2680 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (1532492).

Almost surely, 2^16810218 is an apocalyptic number.

16810218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16810218 is an abundant number, since it is smaller than the sum of its proper divisors (19969590).

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

16810218 is a wasteful number, since it uses less digits than its factorization.

16810218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178 (or 9175 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 16810218 is about 4100.0265852797. The cubic root of 16810218 is about 256.1677469101.

The spelling of 16810218 in words is "sixteen million, eight hundred ten thousand, two hundred eighteen".