442224422208 has 70 divisors (see below), whose sum is σ = 1310891739146. Its totient is φ = 147408139008.

The previous prime is 442224422131. The next prime is 442224422243. The reversal of 442224422208 is 802224422244.

442224422208 is a `hidden beast` number, since 4 + 4 + 2 + 2 + 2 + 442 + 2 + 208 = 666.

It can be written as a sum of positive squares in only one way, i.e., 233126740224 + 209097681984 = 482832^2 + 457272^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42647635 + ... + 42658002.

Almost surely, 2^442224422208 is an apocalyptic number.

442224422208 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

442224422208 is an abundant number, since it is smaller than the sum of its proper divisors (868667316938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442224422208 is an equidigital number, since it uses as much as digits as its factorization.

442224422208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85305661 (or 85305642 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

Adding to 442224422208 its sum of digits (36), we get a palindrome (442224422244).

The spelling of 442224422208 in words is "four hundred forty-two billion, two hundred twenty-four million, four hundred twenty-two thousand, two hundred eight".