224123421 has 8 divisors (see below), whose sum is σ = 299069280. Its totient is φ = 149296592.

The previous prime is 224123407. The next prime is 224123423. The reversal of 224123421 is 124321422.

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

It is a cyclic number.

It is not a de Polignac number, because 224123421 - 2²¹ = 222026269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224123423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25266 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (37383660).

Almost surely, 2^224123421 is an apocalyptic number.

It is an amenable number.

224123421 is a deficient number, since it is larger than the sum of its proper divisors (74945859).

224123421 is a wasteful number, since it uses less digits than its factorization.

224123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59515.

The product of its digits is 768, while the sum is 21.

The square root of 224123421 is about 14970.7521855116. The cubic root of 224123421 is about 607.4293152191.

Adding to 224123421 its reverse (124321422), we get a palindrome (348444843).

The spelling of 224123421 in words is "two hundred twenty-four million, one hundred twenty-three thousand, four hundred twenty-one".