244400403220 has 12 divisors (see below), whose sum is σ = 513240846804. Its totient is φ = 97760161280.

The previous prime is 244400403187. The next prime is 244400403241. The reversal of 244400403220 is 22304004442.

244400403220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 187483804036 + 56916599184 = 432994^2 + 238572^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6110010061 + ... + 6110010100.

It is an arithmetic number, because the mean of its divisors is an integer number (42770070567).

Almost surely, 2^244400403220 is an apocalyptic number.

244400403220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244400403220 is an abundant number, since it is smaller than the sum of its proper divisors (268840443584).

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

244400403220 is a wasteful number, since it uses less digits than its factorization.

244400403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220020170 (or 12220020168 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 244400403220 its reverse (22304004442), we get a palindrome (266704407662).

The spelling of 244400403220 in words is "two hundred forty-four billion, four hundred million, four hundred three thousand, two hundred twenty".