3855818252 has 24 divisors (see below), whose sum is σ = 7927347792. Its totient is φ = 1617825600.

The previous prime is 3855818251. The next prime is 3855818261. The reversal of 3855818252 is 2528185583.

3855818252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3855818197 and 3855818206.

It is not an unprimeable number, because it can be changed into a prime (3855818251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3369899 + ... + 3371042.

It is an arithmetic number, because the mean of its divisors is an integer number (330306158).

Almost surely, 2^3855818252 is an apocalyptic number.

It is an amenable number.

3855818252 is an abundant number, since it is smaller than the sum of its proper divisors (4071529540).

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

3855818252 is a wasteful number, since it uses less digits than its factorization.

3855818252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740969 (or 6740967 counting only the distinct ones).

The product of its digits is 768000, while the sum is 47.

The square root of 3855818252 is about 62095.2353405638. The cubic root of 3855818252 is about 1568.0943316452.

The spelling of 3855818252 in words is "three billion, eight hundred fifty-five million, eight hundred eighteen thousand, two hundred fifty-two".