224938621 has 8 divisors (see below), whose sum is σ = 229004640. Its totient is φ = 220881168.

The previous prime is 224938601. The next prime is 224938667. The reversal of 224938621 is 126839422.

It is a happy number.

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 224938621 - 2²¹ = 222841469 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 (224938601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75655 + ... + 78571.

It is an arithmetic number, because the mean of its divisors is an integer number (28625580).

Almost surely, 2^224938621 is an apocalyptic number.

It is an amenable number.

224938621 is a deficient number, since it is larger than the sum of its proper divisors (4066019).

224938621 is a wasteful number, since it uses less digits than its factorization.

224938621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283.

The product of its digits is 41472, while the sum is 37.

The square root of 224938621 is about 14997.9538937816. The cubic root of 224938621 is about 608.1648879384.

The spelling of 224938621 in words is "two hundred twenty-four million, nine hundred thirty-eight thousand, six hundred twenty-one".