224155232444 has 24 divisors (see below), whose sum is σ = 460850618928. Its totient is φ = 94051146240.

The previous prime is 224155232443. The next prime is 224155232503. The reversal of 224155232444 is 444232551422.

It is a junction number, because it is equal to n+sod(n) for n = 224155232398 and 224155232407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224155232443) 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, 195939317 + ... + 195940460.

It is an arithmetic number, because the mean of its divisors is an integer number (19202109122).

Almost surely, 2^224155232444 is an apocalyptic number.

It is an amenable number.

224155232444 is an abundant number, since it is smaller than the sum of its proper divisors (236695386484).

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

224155232444 is a wasteful number, since it uses less digits than its factorization.

224155232444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391879805 (or 391879803 counting only the distinct ones).

The product of its digits is 307200, while the sum is 38.

Adding to 224155232444 its reverse (444232551422), we get a palindrome (668387783866).

The spelling of 224155232444 in words is "two hundred twenty-four billion, one hundred fifty-five million, two hundred thirty-two thousand, four hundred forty-four".