16684422 has 16 divisors (see below), whose sum is σ = 33625152. Its totient is φ = 5518760.

The previous prime is 16684331. The next prime is 16684471. The reversal of 16684422 is 22448661.

It is a super-3 number, since 3×16684422³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9828 + ... + 11399.

It is an arithmetic number, because the mean of its divisors is an integer number (2101572).

Almost surely, 2^16684422 is an apocalyptic number.

16684422 is an abundant number, since it is smaller than the sum of its proper divisors (16940730).

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

16684422 is a wasteful number, since it uses less digits than its factorization.

16684422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21363.

The product of its digits is 18432, while the sum is 33.

The square root of 16684422 is about 4084.6569011363. The cubic root of 16684422 is about 255.5271524689.

The spelling of 16684422 in words is "sixteen million, six hundred eighty-four thousand, four hundred twenty-two".