222644352 has 128 divisors (see below), whose sum is σ = 682796160. Its totient is φ = 62963712.

The previous prime is 222644351. The next prime is 222644363. The reversal of 222644352 is 253446222.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222644351) 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, 303378 + ... + 304110.

It is an arithmetic number, because the mean of its divisors is an integer number (5334345).

Almost surely, 2^222644352 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 222644352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341398080).

222644352 is an abundant number, since it is smaller than the sum of its proper divisors (460151808).

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

222644352 is a wasteful number, since it uses less digits than its factorization.

222644352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 858 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 222644352 is about 14921.2717956614. The cubic root of 222644352 is about 606.0901520400.

The spelling of 222644352 in words is "two hundred twenty-two million, six hundred forty-four thousand, three hundred fifty-two".