3975221248 has 52 divisors (see below), whose sum is σ = 8417235420. Its totient is φ = 1870659584.

The previous prime is 3975221219. The next prime is 3975221251. The reversal of 3975221248 is 8421225793.

It can be written as a sum of positive squares in 2 ways, for example, as 2415919104 + 1559302144 = 49152^2 + 39488^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 41088 + ... + 98176.

Almost surely, 2^3975221248 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 3975221248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4208617710).

3975221248 is an abundant number, since it is smaller than the sum of its proper divisors (4442014172).

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

3975221248 is an equidigital number, since it uses as much as digits as its factorization.

3975221248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57130 (or 57108 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 3975221248 is about 63049.3556509502. The cubic root of 3975221248 is about 1584.1164421423.

The spelling of 3975221248 in words is "three billion, nine hundred seventy-five million, two hundred twenty-one thousand, two hundred forty-eight".