3220056 has 48 divisors (see below), whose sum is σ = 9968400. Its totient is φ = 919872.

The previous prime is 3220051. The next prime is 3220081. The reversal of 3220056 is 6500223.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2691 + ... + 3698.

It is an arithmetic number, because the mean of its divisors is an integer number (207675).

Almost surely, 2^3220056 is an apocalyptic number.

3220056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3220056 is an abundant number, since it is smaller than the sum of its proper divisors (6748344).

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

3220056 is a wasteful number, since it uses less digits than its factorization.

3220056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 6401 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3220056 is about 1794.4514482147. The cubic root of 3220056 is about 147.6684812325.

Adding to 3220056 its reverse (6500223), we get a palindrome (9720279).

The spelling of 3220056 in words is "three million, two hundred twenty thousand, fifty-six".