224224044440 has 64 divisors (see below), whose sum is σ = 551125935360. Its totient is φ = 81423745920.

The previous prime is 224224044389. The next prime is 224224044461. The reversal of 224224044440 is 44440422422.

It is a junction number, because it is equal to n+sod(n) for n = 224224044397 and 224224044406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30602 + ... + 670361.

It is an arithmetic number, because the mean of its divisors is an integer number (8611342740).

Almost surely, 2^224224044440 is an apocalyptic number.

224224044440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224224044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275562967680).

224224044440 is an abundant number, since it is smaller than the sum of its proper divisors (326901890920).

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

224224044440 is a wasteful number, since it uses less digits than its factorization.

224224044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701712 (or 701708 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 224224044440 its reverse (44440422422), we get a palindrome (268664466862).

The spelling of 224224044440 in words is "two hundred twenty-four billion, two hundred twenty-four million, forty-four thousand, four hundred forty".