16223328 has 120 divisors (see below), whose sum is σ = 52141320. Its totient is φ = 4907520.

The previous prime is 16223309. The next prime is 16223329. The reversal of 16223328 is 82332261.

16223328 is a `hidden beast` number, since 1 + 622 + 3 + 32 + 8 = 666.

16223328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223329) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28228 + ... + 28796.

It is an arithmetic number, because the mean of its divisors is an integer number (434511).

Almost surely, 2^16223328 is an apocalyptic number.

16223328 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 16223328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26070660).

16223328 is an abundant number, since it is smaller than the sum of its proper divisors (35917992).

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

16223328 is a wasteful number, since it uses less digits than its factorization.

16223328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 585 counting only the distinct ones).

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

The square root of 16223328 is about 4027.8192610891. The cubic root of 16223328 is about 253.1511956429.

Adding to 16223328 its reverse (82332261), we get a palindrome (98555589).

It can be divided in two parts, 162233 and 28, that added together give a palindrome (162261).

The spelling of 16223328 in words is "sixteen million, two hundred twenty-three thousand, three hundred twenty-eight".