3952897220 has 48 divisors (see below), whose sum is σ = 8545143600. Its totient is φ = 1534869504.

The previous prime is 3952897217. The next prime is 3952897261. The reversal of 3952897220 is 227982593.

It can be written as a sum of positive squares in 8 ways, for example, as 1146228736 + 2806668484 = 33856^2 + 52978^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326312 + ... + 338208.

It is an arithmetic number, because the mean of its divisors is an integer number (178023825).

Almost surely, 2^3952897220 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 3952897220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4272571800).

3952897220 is an abundant number, since it is smaller than the sum of its proper divisors (4592246380).

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

3952897220 is a wasteful number, since it uses less digits than its factorization.

3952897220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392 (or 12390 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 3952897220 is about 62872.0702697152. The cubic root of 3952897220 is about 1581.1455160279.

The spelling of 3952897220 in words is "three billion, nine hundred fifty-two million, eight hundred ninety-seven thousand, two hundred twenty".