224404421 has 8 divisors (see below), whose sum is σ = 240088800. Its totient is φ = 209107440.

The previous prime is 224404417. The next prime is 224404463. The reversal of 224404421 is 124404422.

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 224404421 - 2² = 224404417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224404121) 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, 95651 + ... + 97968.

It is an arithmetic number, because the mean of its divisors is an integer number (30011100).

Almost surely, 2^224404421 is an apocalyptic number.

It is an amenable number.

224404421 is a deficient number, since it is larger than the sum of its proper divisors (15684379).

224404421 is a wasteful number, since it uses less digits than its factorization.

224404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193699.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 224404421 is about 14980.1342116818. The cubic root of 224404421 is about 607.6830687863.

Adding to 224404421 its reverse (124404422), we get a palindrome (348808843).

Subtracting from 224404421 its reverse (124404422), we obtain a palindrome (99999999).

The spelling of 224404421 in words is "two hundred twenty-four million, four hundred four thousand, four hundred twenty-one".