3220229 has 4 divisors (see below), whose sum is σ = 3228300. Its totient is φ = 3212160.

The previous prime is 3220219. The next prime is 3220267. The reversal of 3220229 is 9220223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9220223 = 827 ⋅11149.

It can be written as a sum of positive squares in 2 ways, for example, as 62500 + 3157729 = 250^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220229 - 2⁸ = 3219973 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3220229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404 + ... + 4245.

It is an arithmetic number, because the mean of its divisors is an integer number (807075).

Almost surely, 2^3220229 is an apocalyptic number.

It is an amenable number.

3220229 is a deficient number, since it is larger than the sum of its proper divisors (8071).

3220229 is an equidigital number, since it uses as much as digits as its factorization.

3220229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3220229 is about 1794.4996517135. The cubic root of 3220229 is about 147.6711257196.

The spelling of 3220229 in words is "three million, two hundred twenty thousand, two hundred twenty-nine".