4221250 has 40 divisors (see below), whose sum is σ = 8659728. Its totient is φ = 1530000.

The previous prime is 4221247. The next prime is 4221263. The reversal of 4221250 is 521224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13597 + ... + 13903.

Almost surely, 2^4221250 is an apocalyptic number.

4221250 is an abundant number, since it is smaller than the sum of its proper divisors (4438478).

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

4221250 is a wasteful number, since it uses less digits than its factorization.

4221250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4221250 is about 2054.5680811304. The cubic root of 4221250 is about 161.6145130007.

Adding to 4221250 its reverse (521224), we get a palindrome (4742474).

The spelling of 4221250 in words is "four million, two hundred twenty-one thousand, two hundred fifty".