442466222 has 16 divisors (see below), whose sum is σ = 729741312. Its totient is φ = 199536120.

The previous prime is 442466221. The next prime is 442466237. The reversal of 442466222 is 222664244.

It is a super-2 number, since 2×442466222² = 391552715221906568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442466221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76388 + ... + 81975.

It is an arithmetic number, because the mean of its divisors is an integer number (45608832).

Almost surely, 2^442466222 is an apocalyptic number.

442466222 is a deficient number, since it is larger than the sum of its proper divisors (287275090).

442466222 is a wasteful number, since it uses less digits than its factorization.

442466222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158503.

The product of its digits is 36864, while the sum is 32.

The square root of 442466222 is about 21034.8810788176. The cubic root of 442466222 is about 762.0088946177.

It can be divided in two parts, 442 and 466222, that added together give a palindrome (466664).

The spelling of 442466222 in words is "four hundred forty-two million, four hundred sixty-six thousand, two hundred twenty-two".