3221900 has 72 divisors (see below), whose sum is σ = 7968240. Its totient is φ = 1120000.

The previous prime is 3221899. The next prime is 3221917. The reversal of 3221900 is 91223.

It is a super-2 number, since 2×3221900² = 20761279220000, which contains 22 as substring.

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, 31850 + ... + 31950.

It is an arithmetic number, because the mean of its divisors is an integer number (110670).

Almost surely, 2^3221900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3984120).

3221900 is an abundant number, since it is smaller than the sum of its proper divisors (4746340).

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

3221900 is a wasteful number, since it uses less digits than its factorization.

3221900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3221900 is about 1794.9651807208. The cubic root of 3221900 is about 147.6966638394.

It can be divided in two parts, 322 and 1900, that added together give a palindrome (2222).

The spelling of 3221900 in words is "three million, two hundred twenty-one thousand, nine hundred".