440220220 has 48 divisors (see below), whose sum is σ = 1012235616. Its totient is φ = 159488000.

The previous prime is 440220169. The next prime is 440220223. The reversal of 440220220 is 22022044.

440220220 is a modest number, since divided by 220220 gives 440 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 440220194 and 440220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440220223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58260 + ... + 65380.

It is an arithmetic number, because the mean of its divisors is an integer number (21088242).

Almost surely, 2^440220220 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 440220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506117808).

440220220 is an abundant number, since it is smaller than the sum of its proper divisors (572015396).

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

440220220 is a wasteful number, since it uses less digits than its factorization.

440220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422 (or 7420 counting only the distinct ones).

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

The square root of 440220220 is about 20981.4255950352. The cubic root of 440220220 is about 760.7173628355.

Adding to 440220220 its reverse (22022044), we get a palindrome (462242264).

The spelling of 440220220 in words is "four hundred forty million, two hundred twenty thousand, two hundred twenty".