14224821 has 8 divisors (see below), whose sum is σ = 20425440. Its totient is φ = 8753712.

The previous prime is 14224813. The next prime is 14224823. The reversal of 14224821 is 12842241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14224821 - 2³ = 14224813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14224791 and 14224800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14224823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182331 + ... + 182408.

It is an arithmetic number, because the mean of its divisors is an integer number (2553180).

Almost surely, 2^14224821 is an apocalyptic number.

It is an amenable number.

14224821 is a deficient number, since it is larger than the sum of its proper divisors (6200619).

14224821 is a wasteful number, since it uses less digits than its factorization.

14224821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364755.

The product of its digits is 1024, while the sum is 24.

The square root of 14224821 is about 3771.5807031005. The cubic root of 14224821 is about 242.2975019766.

The spelling of 14224821 in words is "fourteen million, two hundred twenty-four thousand, eight hundred twenty-one".