442202222 has 32 divisors (see below), whose sum is σ = 834326784. Its totient is φ = 170755200.

The previous prime is 442202177. The next prime is 442202231. The reversal of 442202222 is 222202244.

It is a junction number, because it is equal to n+sod(n) for n = 442202194 and 442202203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4697 + ... + 30107.

It is an arithmetic number, because the mean of its divisors is an integer number (26072712).

Almost surely, 2^442202222 is an apocalyptic number.

442202222 is a deficient number, since it is larger than the sum of its proper divisors (392124562).

442202222 is a wasteful number, since it uses less digits than its factorization.

442202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25544.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 442202222 is about 21028.6048514874. The cubic root of 442202222 is about 761.8573121456.

Adding to 442202222 its reverse (222202244), we get a palindrome (664404466).

The spelling of 442202222 in words is "four hundred forty-two million, two hundred two thousand, two hundred twenty-two".