3895528820 has 108 divisors (see below), whose sum is σ = 8790874092. Its totient is φ = 1449907200.

The previous prime is 3895528817. The next prime is 3895528823. The reversal of 3895528820 is 288255983.

It is an interprime number because it is at equal distance from previous prime (3895528817) and next prime (3895528823).

It can be written as a sum of positive squares in 6 ways, for example, as 28430224 + 3867098596 = 5332^2 + 62186^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3895528823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16163900 + ... + 16164140.

Almost surely, 2^3895528820 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 3895528820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4395437046).

3895528820 is an abundant number, since it is smaller than the sum of its proper divisors (4895345272).

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

3895528820 is a wasteful number, since it uses less digits than its factorization.

3895528820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The square root of 3895528820 is about 62414.1716279244. The cubic root of 3895528820 is about 1573.4591558660.

The spelling of 3895528820 in words is "three billion, eight hundred ninety-five million, five hundred twenty-eight thousand, eight hundred twenty".