3220672 has 84 divisors (see below), whose sum is σ = 8107680. Its totient is φ = 1257984.

The previous prime is 3220669. The next prime is 3220681. The reversal of 3220672 is 2760223.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40729 + ... + 40807.

It is an arithmetic number, because the mean of its divisors is an integer number (96520).

Almost surely, 2^3220672 is an apocalyptic number.

3220672 is a gapful number since it is divisible by the number (32) 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 3220672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4053840).

3220672 is an abundant number, since it is smaller than the sum of its proper divisors (4887008).

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

3220672 is a wasteful number, since it uses less digits than its factorization.

3220672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 3220672 is about 1794.6230802038. The cubic root of 3220672 is about 147.6778970092.

Adding to 3220672 its reverse (2760223), we get a palindrome (5980895).

The spelling of 3220672 in words is "three million, two hundred twenty thousand, six hundred seventy-two".