3820855281 has 32 divisors (see below), whose sum is σ = 5508518400. Its totient is φ = 2346912000.

The previous prime is 3820855279. The next prime is 3820855319. The reversal of 3820855281 is 1825580283.

3820855281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3820855281 - 2¹ = 3820855279 is a prime.

It is a super-2 number, since 2×3820855281² = 29197870156691177922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3820855261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752730 + ... + 757788.

It is an arithmetic number, because the mean of its divisors is an integer number (172141200).

Almost surely, 2^3820855281 is an apocalyptic number.

It is an amenable number.

3820855281 is a deficient number, since it is larger than the sum of its proper divisors (1687663119).

3820855281 is a wasteful number, since it uses less digits than its factorization.

3820855281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 3820855281 is about 61813.0672350111. The cubic root of 3820855281 is about 1563.3403223542.

The spelling of 3820855281 in words is "three billion, eight hundred twenty million, eight hundred fifty-five thousand, two hundred eighty-one".