3172224 has 64 divisors (see below), whose sum is σ = 9204480. Its totient is φ = 960000.

The previous prime is 3172207. The next prime is 3172237. The reversal of 3172224 is 4222713.

It is a tau number, because it is divible by the number of its divisors (64).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3172224.

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, 3849 + ... + 4599.

It is an arithmetic number, because the mean of its divisors is an integer number (143820).

Almost surely, 2^3172224 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 3172224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4602240).

3172224 is an abundant number, since it is smaller than the sum of its proper divisors (6032256).

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

3172224 is a wasteful number, since it uses less digits than its factorization.

3172224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 767 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 3172224 is about 1781.0738333938. The cubic root of 3172224 is about 146.9336551000.

Adding to 3172224 its reverse (4222713), we get a palindrome (7394937).

The spelling of 3172224 in words is "three million, one hundred seventy-two thousand, two hundred twenty-four".