16683228 has 72 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 5322240.

The previous prime is 16683221. The next prime is 16683229. The reversal of 16683228 is 82238661.

It is a super-3 number, since 3×16683228³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16683192 and 16683201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16683221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131301 + ... + 131427.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^16683228 is an apocalyptic number.

16683228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16683228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22014720).

16683228 is an abundant number, since it is smaller than the sum of its proper divisors (27346212).

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

16683228 is a wasteful number, since it uses less digits than its factorization.

16683228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 262 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 16683228 is about 4084.5107418147. The cubic root of 16683228 is about 255.5210568287.

The spelling of 16683228 in words is "sixteen million, six hundred eighty-three thousand, two hundred twenty-eight".