442726222 has 8 divisors (see below), whose sum is σ = 664448400. Its totient is φ = 221243424.

The previous prime is 442726213. The next prime is 442726243. The reversal of 442726222 is 222627244.

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

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 3 ways as a sum of consecutive naturals, for example, 55147 + ... + 62662.

It is an arithmetic number, because the mean of its divisors is an integer number (83056050).

Almost surely, 2^442726222 is an apocalyptic number.

442726222 is a deficient number, since it is larger than the sum of its proper divisors (221722178).

442726222 is a wasteful number, since it uses less digits than its factorization.

442726222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119690.

The product of its digits is 21504, while the sum is 31.

The square root of 442726222 is about 21041.0603820245. The cubic root of 442726222 is about 762.1581214655.

The spelling of 442726222 in words is "four hundred forty-two million, seven hundred twenty-six thousand, two hundred twenty-two".