440442222 has 64 divisors (see below), whose sum is σ = 1030579200. Its totient is φ = 124001280.

The previous prime is 440442187. The next prime is 440442241. The reversal of 440442222 is 222244044.

It is a junction number, because it is equal to n+sod(n) for n = 440442192 and 440442201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86154 + ... + 91122.

It is an arithmetic number, because the mean of its divisors is an integer number (16102800).

Almost surely, 2^440442222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440442222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515289600).

440442222 is an abundant number, since it is smaller than the sum of its proper divisors (590136978).

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

440442222 is a wasteful number, since it uses less digits than its factorization.

440442222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 440442222 is about 20986.7153694903. The cubic root of 440442222 is about 760.8452173255.

Adding to 440442222 its reverse (222244044), we get a palindrome (662686266).

The spelling of 440442222 in words is "four hundred forty million, four hundred forty-two thousand, two hundred twenty-two".