3220626 has 8 divisors (see below), whose sum is σ = 6441264. Its totient is φ = 1073540.

The previous prime is 3220619. The next prime is 3220627. The reversal of 3220626 is 6260223.

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

3220626 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3220627) 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, 268380 + ... + 268391.

It is an arithmetic number, because the mean of its divisors is an integer number (805158).

Almost surely, 2^3220626 is an apocalyptic number.

3220626 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3220626 is a wasteful number, since it uses less digits than its factorization.

3220626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536776.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3220626 is about 1794.6102640964. The cubic root of 3220626 is about 147.6771939245.

Adding to 3220626 its reverse (6260223), we get a palindrome (9480849).

The spelling of 3220626 in words is "three million, two hundred twenty thousand, six hundred twenty-six".