222428684 has 6 divisors (see below), whose sum is σ = 389250204. Its totient is φ = 111214340.

The previous prime is 222428683. The next prime is 222428707. The reversal of 222428684 is 486824222.

222428684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×222428684³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (222428683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803582 + ... + 27803589.

It is an arithmetic number, because the mean of its divisors is an integer number (64875034).

Almost surely, 2^222428684 is an apocalyptic number.

It is an amenable number.

222428684 is a deficient number, since it is larger than the sum of its proper divisors (166821520).

222428684 is a wasteful number, since it uses less digits than its factorization.

222428684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55607175 (or 55607173 counting only the distinct ones).

The product of its digits is 98304, while the sum is 38.

The square root of 222428684 is about 14914.0431808413. The cubic root of 222428684 is about 605.8943891883.

The spelling of 222428684 in words is "two hundred twenty-two million, four hundred twenty-eight thousand, six hundred eighty-four".