224132321 has 16 divisors (see below), whose sum is σ = 262416000. Its totient is φ = 191351664.

The previous prime is 224132317. The next prime is 224132323. The reversal of 224132321 is 123231422.

It is not a de Polignac number, because 224132321 - 2² = 224132317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224132293 and 224132302.

It is not an unprimeable number, because it can be changed into a prime (224132323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95915 + ... + 98223.

It is an arithmetic number, because the mean of its divisors is an integer number (16401000).

Almost surely, 2^224132321 is an apocalyptic number.

It is an amenable number.

224132321 is a deficient number, since it is larger than the sum of its proper divisors (38283679).

224132321 is an equidigital number, since it uses as much as digits as its factorization.

224132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2599 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 224132321 is about 14971.0494288143. The cubic root of 224132321 is about 607.4373555053.

Adding to 224132321 its reverse (123231422), we get a palindrome (347363743).

The spelling of 224132321 in words is "two hundred twenty-four million, one hundred thirty-two thousand, three hundred twenty-one".