3221250 has 40 divisors (see below), whose sum is σ = 8059920. Its totient is φ = 858000.

The previous prime is 3221243. The next prime is 3221261. The reversal of 3221250 is 521223.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3321 + ... + 4179.

It is an arithmetic number, because the mean of its divisors is an integer number (201498).

Almost surely, 2^3221250 is an apocalyptic number.

3221250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4029960).

3221250 is an abundant number, since it is smaller than the sum of its proper divisors (4838670).

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

3221250 is an equidigital number, since it uses as much as digits as its factorization.

3221250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3221250 is about 1794.7841095798. The cubic root of 3221250 is about 147.6867308508.

Adding to 3221250 its reverse (521223), we get a palindrome (3742473).

The spelling of 3221250 in words is "three million, two hundred twenty-one thousand, two hundred fifty".