3220465 has 8 divisors (see below), whose sum is σ = 3908520. Its totient is φ = 2547072.

The previous prime is 3220453. The next prime is 3220471. The reversal of 3220465 is 5640223.

It is a happy number.

3220465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 178929 + 3041536 = 423^2 + 1744^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3220465 - 2⁵ = 3220433 is a prime.

3220465 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3174 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (488565).

Almost surely, 2^3220465 is an apocalyptic number.

It is an amenable number.

3220465 is a deficient number, since it is larger than the sum of its proper divisors (688055).

3220465 is an equidigital number, since it uses as much as digits as its factorization.

3220465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3220465 is about 1794.5654069997. The cubic root of 3220465 is about 147.6747330753.

Adding to 3220465 its reverse (5640223), we get a palindrome (8860688).

The spelling of 3220465 in words is "three million, two hundred twenty thousand, four hundred sixty-five".