222840366 has 16 divisors (see below), whose sum is σ = 509349504. Its totient is φ = 63668664.

The previous prime is 222840349. The next prime is 222840367. The reversal of 222840366 is 663048222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222840367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2652820 + ... + 2652903.

It is an arithmetic number, because the mean of its divisors is an integer number (31834344).

Almost surely, 2^222840366 is an apocalyptic number.

222840366 is an abundant number, since it is smaller than the sum of its proper divisors (286509138).

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

222840366 is a wasteful number, since it uses less digits than its factorization.

222840366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305735.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 222840366 is about 14927.8386245297. The cubic root of 222840366 is about 606.2679652309.

Adding to 222840366 its reverse (663048222), we get a palindrome (885888588).

The spelling of 222840366 in words is "two hundred twenty-two million, eight hundred forty thousand, three hundred sixty-six".