224442421 has 16 divisors (see below), whose sum is σ = 270444160. Its totient is φ = 181958400.

The previous prime is 224442419. The next prime is 224442433. The reversal of 224442421 is 124244422.

It is a cyclic number.

It is not a de Polignac number, because 224442421 - 2¹ = 224442419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224442461) 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 15 ways as a sum of consecutive naturals, for example, 123721 + ... + 125521.

It is an arithmetic number, because the mean of its divisors is an integer number (16902760).

Almost surely, 2^224442421 is an apocalyptic number.

It is an amenable number.

224442421 is a deficient number, since it is larger than the sum of its proper divisors (46001739).

224442421 is a wasteful number, since it uses less digits than its factorization.

224442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764.

The product of its digits is 4096, while the sum is 25.

The square root of 224442421 is about 14981.4025044386. The cubic root of 224442421 is about 607.7173679520.

Adding to 224442421 its reverse (124244422), we get a palindrome (348686843).

The spelling of 224442421 in words is "two hundred twenty-four million, four hundred forty-two thousand, four hundred twenty-one".