3221622 has 24 divisors (see below), whose sum is σ = 7062120. Its totient is φ = 1061280.

The previous prime is 3221599. The next prime is 3221629. The reversal of 3221622 is 2261223.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3221595 and 3221604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221629) 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, 597 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (294255).

Almost surely, 2^3221622 is an apocalyptic number.

3221622 is an abundant number, since it is smaller than the sum of its proper divisors (3840498).

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

3221622 is a wasteful number, since it uses less digits than its factorization.

3221622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2105 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 3221622 is about 1794.8877402222. The cubic root of 3221622 is about 147.6924157401.

Adding to 3221622 its reverse (2261223), we get a palindrome (5482845).

The spelling of 3221622 in words is "three million, two hundred twenty-one thousand, six hundred twenty-two".