4400400222 has 16 divisors (see below), whose sum is σ = 9778667280. Its totient is φ = 1466800056.

The previous prime is 4400400167. The next prime is 4400400233. The reversal of 4400400222 is 2220040044.

4400400222 is a `hidden beast` number, since 4 + 40 + 0 + 400 + 222 = 666.

It is a super-2 number, since 2×4400400222² = 38727044227555298568, which contains 22 as substring.

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 = 4400400195 and 4400400204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40744393 + ... + 40744500.

It is an arithmetic number, because the mean of its divisors is an integer number (611166705).

Almost surely, 2^4400400222 is an apocalyptic number.

4400400222 is an abundant number, since it is smaller than the sum of its proper divisors (5378267058).

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

4400400222 is a wasteful number, since it uses less digits than its factorization.

4400400222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81488904 (or 81488898 counting only the distinct ones).

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

The square root of 4400400222 is about 66335.5125253435. The cubic root of 4400400222 is about 1638.6922230885.

Adding to 4400400222 its reverse (2220040044), we get a palindrome (6620440266).

The spelling of 4400400222 in words is "four billion, four hundred million, four hundred thousand, two hundred twenty-two".