224344240 has 80 divisors (see below), whose sum is σ = 555151968. Its totient is φ = 84021248.

The previous prime is 224344199. The next prime is 224344243. The reversal of 224344240 is 42443422.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (224344243) 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, 398199 + ... + 398761.

Almost surely, 2^224344240 is an apocalyptic number.

224344240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224344240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277575984).

224344240 is an abundant number, since it is smaller than the sum of its proper divisors (330807728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224344240 is a wasteful number, since it uses less digits than its factorization.

224344240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 224344240 is about 14978.1253833716. The cubic root of 224344240 is about 607.6287409136.

Adding to 224344240 its reverse (42443422), we get a palindrome (266787662).

The spelling of 224344240 in words is "two hundred twenty-four million, three hundred forty-four thousand, two hundred forty".