222042344 has 8 divisors (see below), whose sum is σ = 416329410. Its totient is φ = 111021168.

The previous prime is 222042343. The next prime is 222042361. The reversal of 222042344 is 443240222.

It can be written as a sum of positive squares in only one way, i.e., 221116900 + 925444 = 14870^2 + 962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (222042343) 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 as a sum of consecutive naturals, namely, 13877639 + ... + 13877654.

Almost surely, 2^222042344 is an apocalyptic number.

It is an amenable number.

222042344 is a deficient number, since it is larger than the sum of its proper divisors (194287066).

222042344 is a wasteful number, since it uses less digits than its factorization.

222042344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755299 (or 27755295 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 222042344 is about 14901.0853295993. The cubic root of 222042344 is about 605.5433899503.

Adding to 222042344 its reverse (443240222), we get a palindrome (665282566).

The spelling of 222042344 in words is "two hundred twenty-two million, forty-two thousand, three hundred forty-four".