222562656 has 144 divisors (see below), whose sum is σ = 675183600. Its totient is φ = 69341184.

The previous prime is 222562649. The next prime is 222562679. The reversal of 222562656 is 656265222.

222562656 is a `hidden beast` number, since 2 + 2 + 25 + 626 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 222562656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486780 + ... + 487236.

It is an arithmetic number, because the mean of its divisors is an integer number (4688775).

Almost surely, 2^222562656 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 222562656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337591800).

222562656 is an abundant number, since it is smaller than the sum of its proper divisors (452620944).

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

222562656 is a wasteful number, since it uses less digits than its factorization.

222562656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 570 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 222562656 is about 14918.5339762324. The cubic root of 222562656 is about 606.0160110791.

The spelling of 222562656 in words is "two hundred twenty-two million, five hundred sixty-two thousand, six hundred fifty-six".