3220040 has 32 divisors (see below), whose sum is σ = 7344000. Its totient is φ = 1270464.

The previous prime is 3220037. The next prime is 3220051. The reversal of 3220040 is 400223.

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 7 ways as a sum of consecutive naturals, for example, 2651 + ... + 3669.

It is an arithmetic number, because the mean of its divisors is an integer number (229500).

Almost surely, 2^3220040 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 3220040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3672000).

3220040 is an abundant number, since it is smaller than the sum of its proper divisors (4123960).

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

3220040 is a wasteful number, since it uses less digits than its factorization.

3220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 3220040 is about 1794.4469900223. The cubic root of 3220040 is about 147.6682366509.

Adding to 3220040 its reverse (400223), we get a palindrome (3620263).

The spelling of 3220040 in words is "three million, two hundred twenty thousand, forty".