3845765920 has 24 divisors (see below), whose sum is σ = 9085622364. Its totient is φ = 1538306304.

The previous prime is 3845765909. The next prime is 3845765921. The reversal of 3845765920 is 295675483.

3845765920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3721488016 + 124277904 = 61004^2 + 11148^2 .

It is a super-2 number, since 2×3845765920² = 29579831022866892800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3845765921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12017859 + ... + 12018178.

Almost surely, 2^3845765920 is an apocalyptic number.

It is an amenable number.

3845765920 is an abundant number, since it is smaller than the sum of its proper divisors (5239856444).

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

3845765920 is a wasteful number, since it uses less digits than its factorization.

3845765920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036052 (or 24036044 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The square root of 3845765920 is about 62014.2396550986. The cubic root of 3845765920 is about 1566.7304427536.

The spelling of 3845765920 in words is "three billion, eight hundred forty-five million, seven hundred sixty-five thousand, nine hundred twenty".