14224428 has 72 divisors (see below), whose sum is σ = 37761360. Its totient is φ = 4510080.

The previous prime is 14224423. The next prime is 14224439. The reversal of 14224428 is 82442241.

14224428 is a `hidden beast` number, since 14 + 224 + 428 = 666.

It is not an unprimeable number, because it can be changed into a prime (14224423) 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, 78498 + ... + 78678.

Almost surely, 2^14224428 is an apocalyptic number.

14224428 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 14224428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18880680).

14224428 is an abundant number, since it is smaller than the sum of its proper divisors (23536932).

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

14224428 is a wasteful number, since it uses less digits than its factorization.

14224428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 282 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 14224428 is about 3771.5286025695. The cubic root of 14224428 is about 242.2952705767.

Adding to 14224428 its reverse (82442241), we get a palindrome (96666669).

The spelling of 14224428 in words is "fourteen million, two hundred twenty-four thousand, four hundred twenty-eight".