224307720 has 384 divisors, whose sum is σ = 924618240. Its totient is φ = 45895680.

The previous prime is 224307719. The next prime is 224307731. The reversal of 224307720 is 27703422.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1343077 + ... + 1343243.

It is an arithmetic number, because the mean of its divisors is an integer number (2407860).

Almost surely, 2^224307720 is an apocalyptic number.

224307720 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 224307720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462309120).

224307720 is an abundant number, since it is smaller than the sum of its proper divisors (700310520).

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

224307720 is a wasteful number, since it uses less digits than its factorization.

224307720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 224307720 is about 14976.9062225815. The cubic root of 224307720 is about 607.5957680652.

The spelling of 224307720 in words is "two hundred twenty-four million, three hundred seven thousand, seven hundred twenty".