222444307 has 8 divisors (see below), whose sum is σ = 224263440. Its totient is φ = 220631040.

The previous prime is 222444281. The next prime is 222444317. The reversal of 222444307 is 703444222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222444307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222444317) 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 7 ways as a sum of consecutive naturals, for example, 103419 + ... + 105547.

It is an arithmetic number, because the mean of its divisors is an integer number (28032930).

Almost surely, 2^222444307 is an apocalyptic number.

222444307 is a deficient number, since it is larger than the sum of its proper divisors (1819133).

222444307 is a wasteful number, since it uses less digits than its factorization.

222444307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 222444307 is about 14914.5669397405. The cubic root of 222444307 is about 605.9085745087.

Adding to 222444307 its reverse (703444222), we get a palindrome (925888529).

The spelling of 222444307 in words is "two hundred twenty-two million, four hundred forty-four thousand, three hundred seven".