3220245 has 24 divisors (see below), whose sum is σ = 6379776. Its totient is φ = 1471968.

The previous prime is 3220219. The next prime is 3220267. The reversal of 3220245 is 5420223.

It is not a de Polignac number, because 3220245 - 2⁷ = 3220117 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4797 + ... + 5426.

It is an arithmetic number, because the mean of its divisors is an integer number (265824).

Almost surely, 2^3220245 is an apocalyptic number.

3220245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3220245 is a deficient number, since it is larger than the sum of its proper divisors (3159531).

3220245 is a wasteful number, since it uses less digits than its factorization.

3220245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10241 (or 10238 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 3220245 is about 1794.5041097752. The cubic root of 3220245 is about 147.6713702917.

Adding to 3220245 its reverse (5420223), we get a palindrome (8640468).

The spelling of 3220245 in words is "three million, two hundred twenty thousand, two hundred forty-five".