3750220 has 48 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 1391040.

The previous prime is 3750211. The next prime is 3750221. The reversal of 3750220 is 220573.

It is a happy number.

3750220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (3750221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26911 + ... + 27049.

It is an arithmetic number, because the mean of its divisors is an integer number (176400).

Almost surely, 2^3750220 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 3750220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4233600).

3750220 is an abundant number, since it is smaller than the sum of its proper divisors (4716980).

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

3750220 is a wasteful number, since it uses less digits than its factorization.

3750220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 3750220 is about 1936.5484760264. The cubic root of 3750220 is about 155.3646634212.

Adding to 3750220 its reverse (220573), we get a palindrome (3970793).

The spelling of 3750220 in words is "three million, seven hundred fifty thousand, two hundred twenty".