16216443 has 40 divisors (see below), whose sum is σ = 26223120. Its totient is φ = 9953280.

The previous prime is 16216433. The next prime is 16216451. The reversal of 16216443 is 34461261.

16216443 is a `hidden beast` number, since 1 + 6 + 216 + 443 = 666.

It is not a de Polignac number, because 16216443 - 2⁴ = 16216427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16216433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 62971 + ... + 63227.

It is an arithmetic number, because the mean of its divisors is an integer number (655578).

Almost surely, 2^16216443 is an apocalyptic number.

16216443 is a deficient number, since it is larger than the sum of its proper divisors (10006677).

16216443 is a wasteful number, since it uses less digits than its factorization.

16216443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 320 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 16216443 is about 4026.9644895380. The cubic root of 16216443 is about 253.1153790582.

The spelling of 16216443 in words is "sixteen million, two hundred sixteen thousand, four hundred forty-three".