244444220 has 12 divisors (see below), whose sum is σ = 513332904. Its totient is φ = 97777680.

The previous prime is 244444217. The next prime is 244444231. The reversal of 244444220 is 22444442.

It is a self number, because there is not a number n which added to its sum of digits gives 244444220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111086 + ... + 6111125.

It is an arithmetic number, because the mean of its divisors is an integer number (42777742).

Almost surely, 2^244444220 is an apocalyptic number.

244444220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244444220 is an abundant number, since it is smaller than the sum of its proper divisors (268888684).

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

244444220 is a wasteful number, since it uses less digits than its factorization.

244444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222220 (or 12222218 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 244444220 is about 15634.7120216523. The cubic root of 244444220 is about 625.2589604217.

Adding to 244444220 its reverse (22444442), we get a palindrome (266888662).

It can be divided in two parts, 2444 and 44220, that added together give a palindrome (46664).

The spelling of 244444220 in words is "two hundred forty-four million, four hundred forty-four thousand, two hundred twenty".