4223456172 has 144 divisors (see below), whose sum is σ = 11736230688. Its totient is φ = 1272775680.

The previous prime is 4223456161. The next prime is 4223456179. The reversal of 4223456172 is 2716543224.

4223456172 is a `hidden beast` number, since 4 + 2 + 2 + 34 + 5 + 617 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (80640) is a multiple of the sum of its prime factors (960).

It is not an unprimeable number, because it can be changed into a prime (4223456179) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6183343 + ... + 6184025.

It is an arithmetic number, because the mean of its divisors is an integer number (81501602).

Almost surely, 2^4223456172 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 4223456172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5868115344).

4223456172 is an abundant number, since it is smaller than the sum of its proper divisors (7512774516).

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

4223456172 is a wasteful number, since it uses less digits than its factorization.

4223456172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 955 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 4223456172 is about 64988.1233149566. The cubic root of 4223456172 is about 1616.4266321819.

Adding to 4223456172 its reverse (2716543224), we get a palindrome (6939999396).

The spelling of 4223456172 in words is "four billion, two hundred twenty-three million, four hundred fifty-six thousand, one hundred seventy-two".