224044400420 has 24 divisors (see below), whose sum is σ = 486717147000. Its totient is φ = 86527492352.

The previous prime is 224044400381. The next prime is 224044400429. The reversal of 224044400420 is 24004440422.

It can be written as a sum of positive squares in 4 ways, for example, as 11787010624 + 212257389796 = 108568^2 + 460714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 224044400420.

It is not an unprimeable number, because it can be changed into a prime (224044400429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193141145 + ... + 193142304.

It is an arithmetic number, because the mean of its divisors is an integer number (20279881125).

Almost surely, 2^224044400420 is an apocalyptic number.

224044400420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224044400420 is an abundant number, since it is smaller than the sum of its proper divisors (262672746580).

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

224044400420 is a wasteful number, since it uses less digits than its factorization.

224044400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386283487 (or 386283485 counting only the distinct ones).

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

Adding to 224044400420 its reverse (24004440422), we get a palindrome (248048840842).

The spelling of 224044400420 in words is "two hundred twenty-four billion, forty-four million, four hundred thousand, four hundred twenty".