224230421 has 4 divisors (see below), whose sum is σ = 224298144. Its totient is φ = 224162700.

The previous prime is 224230411. The next prime is 224230429. The reversal of 224230421 is 124032422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224230421 - 2²⁶ = 157121557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224230393 and 224230402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224230429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28625 + ... + 35606.

It is an arithmetic number, because the mean of its divisors is an integer number (56074536).

Almost surely, 2^224230421 is an apocalyptic number.

It is an amenable number.

224230421 is a deficient number, since it is larger than the sum of its proper divisors (67723).

224230421 is an equidigital number, since it uses as much as digits as its factorization.

224230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67722.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 224230421 is about 14974.3253938199. The cubic root of 224230421 is about 607.5259652345.

Adding to 224230421 its reverse (124032422), we get a palindrome (348262843).

The spelling of 224230421 in words is "two hundred twenty-four million, two hundred thirty thousand, four hundred twenty-one".