222443442 has 96 divisors (see below), whose sum is σ = 557424000. Its totient is φ = 65359008.

The previous prime is 222443437. The next prime is 222443443. The reversal of 222443442 is 244344222.

222443442 is a `hidden beast` number, since 2 + 224 + 434 + 4 + 2 = 666.

222443442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (222443443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 371059 + ... + 371657.

It is an arithmetic number, because the mean of its divisors is an integer number (5806500).

Almost surely, 2^222443442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222443442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278712000).

222443442 is an abundant number, since it is smaller than the sum of its proper divisors (334980558).

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

222443442 is a wasteful number, since it uses less digits than its factorization.

222443442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 640 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 222443442 is about 14914.5379412170. The cubic root of 222443442 is about 605.9077891262.

Adding to 222443442 its reverse (244344222), we get a palindrome (466787664).

The spelling of 222443442 in words is "two hundred twenty-two million, four hundred forty-three thousand, four hundred forty-two".