224755421 has 8 divisors (see below), whose sum is σ = 245397600. Its totient is φ = 204148240.

The previous prime is 224755411. The next prime is 224755429. The reversal of 224755421 is 124557422.

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 224755421 - 2⁶ = 224755357 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 (224755429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5735 + ... + 21963.

It is an arithmetic number, because the mean of its divisors is an integer number (30674700).

Almost surely, 2^224755421 is an apocalyptic number.

It is an amenable number.

224755421 is a deficient number, since it is larger than the sum of its proper divisors (20642179).

224755421 is a wasteful number, since it uses less digits than its factorization.

224755421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17499.

The product of its digits is 22400, while the sum is 32.

The square root of 224755421 is about 14991.8451499474. The cubic root of 224755421 is about 607.9997375994. Note that the first 3 decimals are identical.

The spelling of 224755421 in words is "two hundred twenty-four million, seven hundred fifty-five thousand, four hundred twenty-one".