222443361 has 16 divisors (see below), whose sum is σ = 376624000. Its totient is φ = 127110384.

The previous prime is 222443359. The next prime is 222443401. The reversal of 222443361 is 163344222.

222443361 is a `hidden beast` number, since 2 + 224 + 433 + 6 + 1 = 666.

It is not a de Polignac number, because 222443361 - 2¹ = 222443359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222443341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588286 + ... + 588663.

It is an arithmetic number, because the mean of its divisors is an integer number (23539000).

Almost surely, 2^222443361 is an apocalyptic number.

222443361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222443361 is a deficient number, since it is larger than the sum of its proper divisors (154180639).

222443361 is a wasteful number, since it uses less digits than its factorization.

222443361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176965 (or 1176959 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 222443361 is about 14914.5352257454. The cubic root of 222443361 is about 605.9077155816.

Adding to 222443361 its reverse (163344222), we get a palindrome (385787583).

The spelling of 222443361 in words is "two hundred twenty-two million, four hundred forty-three thousand, three hundred sixty-one".