3845608020 has 36 divisors (see below), whose sum is σ = 11665011540. Its totient is φ = 1025495424.

The previous prime is 3845608007. The next prime is 3845608021. The reversal of 3845608020 is 208065483.

3845608020 is a `hidden beast` number, since 3 + 8 + 45 + 608 + 0 + 2 + 0 = 666.

3845608020 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 1734389316 + 2111218704 = 41646^2 + 45948^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845608021) 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, 10682065 + ... + 10682424.

Almost surely, 2^3845608020 is an apocalyptic number.

3845608020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3845608020 is an abundant number, since it is smaller than the sum of its proper divisors (7819403520).

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

3845608020 is a wasteful number, since it uses less digits than its factorization.

3845608020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21364504 (or 21364499 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 3845608020 is about 62012.9665473278. The cubic root of 3845608020 is about 1566.7090001136.

The spelling of 3845608020 in words is "three billion, eight hundred forty-five million, six hundred eight thousand, twenty".