16340224 has 72 divisors (see below), whose sum is σ = 35320320. Its totient is φ = 7526400.

The previous prime is 16340221. The next prime is 16340237. The reversal of 16340224 is 42204361.

It is a happy number.

It is a nialpdrome in base 4 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16340195 and 16340204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16340221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230109 + ... + 230179.

It is an arithmetic number, because the mean of its divisors is an integer number (490560).

Almost surely, 2^16340224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16340224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17660160).

16340224 is an abundant number, since it is smaller than the sum of its proper divisors (18980096).

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

16340224 is an equidigital number, since it uses as much as digits as its factorization.

16340224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 16340224 is about 4042.3042933456. The cubic root of 16340224 is about 253.7577619019.

Adding to 16340224 its reverse (42204361), we get a palindrome (58544585).

The spelling of 16340224 in words is "sixteen million, three hundred forty thousand, two hundred twenty-four".