224454421 has 4 divisors (see below), whose sum is σ = 226676844. Its totient is φ = 222232000.

The previous prime is 224454413. The next prime is 224454427. The reversal of 224454421 is 124454422.

224454421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118570321 + 105884100 = 10889^2 + 10290^2 .

It is a cyclic number.

It is not a de Polignac number, because 224454421 - 2³ = 224454413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224454421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224454427) 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, 1111060 + ... + 1111261.

It is an arithmetic number, because the mean of its divisors is an integer number (56669211).

Almost surely, 2^224454421 is an apocalyptic number.

It is an amenable number.

224454421 is a deficient number, since it is larger than the sum of its proper divisors (2222423).

224454421 is a wasteful number, since it uses less digits than its factorization.

224454421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222422.

The product of its digits is 10240, while the sum is 28.

The square root of 224454421 is about 14981.8029956344. The cubic root of 224454421 is about 607.7281984632.

Subtracting from 224454421 its reverse (124454422), we obtain a palindrome (99999999).

It can be divided in two parts, 2244 and 54421, that added together give a palindrome (56665).

The spelling of 224454421 in words is "two hundred twenty-four million, four hundred fifty-four thousand, four hundred twenty-one".