224035021 has 8 divisors (see below), whose sum is σ = 257995584. Its totient is φ = 190563360.

The previous prime is 224035013. The next prime is 224035039. The reversal of 224035021 is 120530422.

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 224035021 - 2³ = 224035013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224035021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224035001) 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 7 ways as a sum of consecutive naturals, for example, 121240 + ... + 123073.

It is an arithmetic number, because the mean of its divisors is an integer number (32249448).

Almost surely, 2^224035021 is an apocalyptic number.

It is an amenable number.

224035021 is a deficient number, since it is larger than the sum of its proper divisors (33960563).

224035021 is a wasteful number, since it uses less digits than its factorization.

224035021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244451.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 224035021 is about 14967.7994708641. The cubic root of 224035021 is about 607.3494428396.

Adding to 224035021 its reverse (120530422), we get a palindrome (344565443).

The spelling of 224035021 in words is "two hundred twenty-four million, thirty-five thousand, twenty-one".