440002224 has 120 divisors (see below), whose sum is σ = 1273512240. Its totient is φ = 141709824.

The previous prime is 440002223. The next prime is 440002243. The reversal of 440002224 is 422200044.

440002224 is a `hidden beast` number, since 440 + 0 + 0 + 2 + 224 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 440002197 and 440002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440002223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1433079 + ... + 1433385.

It is an arithmetic number, because the mean of its divisors is an integer number (10612602).

Almost surely, 2^440002224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440002224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636756120).

440002224 is an abundant number, since it is smaller than the sum of its proper divisors (833510016).

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

440002224 is a wasteful number, since it uses less digits than its factorization.

440002224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 440002224 is about 20976.2299758560. The cubic root of 440002224 is about 760.5917736299.

Adding to 440002224 its reverse (422200044), we get a palindrome (862202268).

The spelling of 440002224 in words is "four hundred forty million, two thousand, two hundred twenty-four".