224643245 has 8 divisors (see below), whose sum is σ = 270575640. Its totient is φ = 179045440.

The previous prime is 224643241. The next prime is 224643257. The reversal of 224643245 is 542346422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1857769 + 222785476 = 1363^2 + 14926^2 .

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

It is not a de Polignac number, because 224643245 - 2² = 224643241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224643241) 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, 82166 + ... + 84855.

It is an arithmetic number, because the mean of its divisors is an integer number (33821955).

Almost surely, 2^224643245 is an apocalyptic number.

It is an amenable number.

224643245 is a deficient number, since it is larger than the sum of its proper divisors (45932395).

224643245 is a wasteful number, since it uses less digits than its factorization.

224643245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167295.

The product of its digits is 46080, while the sum is 32.

The square root of 224643245 is about 14988.1034490692. The cubic root of 224643245 is about 607.8985693634.

Adding to 224643245 its reverse (542346422), we get a palindrome (766989667).

The spelling of 224643245 in words is "two hundred twenty-four million, six hundred forty-three thousand, two hundred forty-five".