3845281 has 8 divisors (see below), whose sum is σ = 4441824. Its totient is φ = 3289920.

The previous prime is 3845279. The next prime is 3845287. The reversal of 3845281 is 1825483.

3845281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3845281 - 2¹ = 3845279 is a prime.

It is a super-2 number, since 2×3845281² = 29572371937922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10095 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (555228).

Almost surely, 2^3845281 is an apocalyptic number.

It is an amenable number.

3845281 is a deficient number, since it is larger than the sum of its proper divisors (596543).

3845281 is a wasteful number, since it uses less digits than its factorization.

3845281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20591.

The product of its digits is 7680, while the sum is 31.

The square root of 3845281 is about 1960.9388057765. The cubic root of 3845281 is about 156.6664589304. Note that the first 3 decimals are identical.

It can be divided in two parts, 384 and 5281, that added together give a palindrome (5665).

The spelling of 3845281 in words is "three million, eight hundred forty-five thousand, two hundred eighty-one".