224220724 has 48 divisors (see below), whose sum is σ = 484656256. Its totient is φ = 88387200.

The previous prime is 224220683. The next prime is 224220743. The reversal of 224220724 is 427022422.

224220724 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119554 + ... + 121414.

Almost surely, 2^224220724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224220724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242328128).

224220724 is an abundant number, since it is smaller than the sum of its proper divisors (260435532).

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

224220724 is a wasteful number, since it uses less digits than its factorization.

224220724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 224220724 is about 14974.0016027781. The cubic root of 224220724 is about 607.5172074811.

The spelling of 224220724 in words is "two hundred twenty-four million, two hundred twenty thousand, seven hundred twenty-four".