3945180852 has 36 divisors (see below), whose sum is σ = 10012294656. Its totient is φ = 1309818000.

The previous prime is 3945180847. The next prime is 3945180853. The reversal of 3945180852 is 2580815493.

3945180852 is a `hidden beast` number, since 394 + 5 + 180 + 85 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 3945180798 and 3945180807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945180853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209268 + ... + 227339.

It is an arithmetic number, because the mean of its divisors is an integer number (278119296).

Almost surely, 2^3945180852 is an apocalyptic number.

It is an amenable number.

3945180852 is an abundant number, since it is smaller than the sum of its proper divisors (6067113804).

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

3945180852 is a wasteful number, since it uses less digits than its factorization.

3945180852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436868 (or 436863 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 3945180852 is about 62810.6746660152. The cubic root of 3945180852 is about 1580.1160054760.

The spelling of 3945180852 in words is "three billion, nine hundred forty-five million, one hundred eighty thousand, eight hundred fifty-two".