224105421 has 8 divisors (see below), whose sum is σ = 300224224. Its totient is φ = 148695120.

The previous prime is 224105393. The next prime is 224105429. The reversal of 224105421 is 124501422.

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

It is not a de Polignac number, because 224105421 - 2²⁵ = 190550989 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 (224105429) 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, 176386 + ... + 177651.

It is an arithmetic number, because the mean of its divisors is an integer number (37528028).

Almost surely, 2^224105421 is an apocalyptic number.

It is an amenable number.

224105421 is a deficient number, since it is larger than the sum of its proper divisors (76118803).

224105421 is a wasteful number, since it uses less digits than its factorization.

224105421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354251.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 224105421 is about 14970.1510012424. The cubic root of 224105421 is about 607.4130533155.

Adding to 224105421 its reverse (124501422), we get a palindrome (348606843).

The spelling of 224105421 in words is "two hundred twenty-four million, one hundred five thousand, four hundred twenty-one".