222343776 has 144 divisors (see below), whose sum is σ = 672235200. Its totient is φ = 69513984.

The previous prime is 222343763. The next prime is 222343777. The reversal of 222343776 is 677343222.

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).

Its product of digits (84672) is a multiple of the sum of its prime factors (441).

It is a self number, because there is not a number n which added to its sum of digits gives 222343776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222343777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 979375 + ... + 979601.

It is an arithmetic number, because the mean of its divisors is an integer number (4668300).

Almost surely, 2^222343776 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 222343776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336117600).

222343776 is an abundant number, since it is smaller than the sum of its proper divisors (449891424).

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

222343776 is a wasteful number, since it uses less digits than its factorization.

222343776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 430 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 222343776 is about 14911.1963302748. The cubic root of 222343776 is about 605.8172830835.

Adding to 222343776 its reverse (677343222), we get a palindrome (899686998).

The spelling of 222343776 in words is "two hundred twenty-two million, three hundred forty-three thousand, seven hundred seventy-six".