440000220 has 48 divisors (see below), whose sum is σ = 1344002688. Its totient is φ = 106666560.

The previous prime is 440000219. The next prime is 440000221. The reversal of 440000220 is 22000044.

It is an interprime number because it is at equal distance from previous prime (440000219) and next prime (440000221).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 440000196 and 440000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440000221) 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, 332674 + ... + 333993.

It is an arithmetic number, because the mean of its divisors is an integer number (28000056).

Almost surely, 2^440000220 is an apocalyptic number.

It is an amenable number.

440000220 is an abundant number, since it is smaller than the sum of its proper divisors (904002468).

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

440000220 is a wasteful number, since it uses less digits than its factorization.

440000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666690 (or 666688 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 440000220 is about 20976.1822074466. The cubic root of 440000220 is about 760.5906189173.

Adding to 440000220 its reverse (22000044), we get a palindrome (462000264).

The spelling of 440000220 in words is "four hundred forty million, two hundred twenty", and thus it is an aban number.