440222020 has 96 divisors (see below), whose sum is σ = 1119928320. Its totient is φ = 141989760.

The previous prime is 440222009. The next prime is 440222023. The reversal of 440222020 is 20222044.

It is a junction number, because it is equal to n+sod(n) for n = 440221985 and 440222003.

It is not an unprimeable number, because it can be changed into a prime (440222023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443725 + ... + 444715.

It is an arithmetic number, because the mean of its divisors is an integer number (11665920).

Almost surely, 2^440222020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559964160).

440222020 is an abundant number, since it is smaller than the sum of its proper divisors (679706300).

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

440222020 is a wasteful number, since it uses less digits than its factorization.

440222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440222020 is about 20981.4684900748. The cubic root of 440222020 is about 760.7183996570.

Adding to 440222020 its reverse (20222044), we get a palindrome (460444064).

The spelling of 440222020 in words is "four hundred forty million, two hundred twenty-two thousand, twenty".