3851406 has 48 divisors (see below), whose sum is σ = 9129120. Its totient is φ = 1166400.

The previous prime is 3851399. The next prime is 3851413. The reversal of 3851406 is 6041583.

3851406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3851399) and next prime (3851413).

It is a self number, because there is not a number n which added to its sum of digits gives 3851406.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 25431 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (190190).

Almost surely, 2^3851406 is an apocalyptic number.

It is a pronic number, being equal to 1962×1963.

It is a practical number, because each smaller number is the sum of distinct divisors of 3851406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4564560).

3851406 is an abundant number, since it is smaller than the sum of its proper divisors (5277714).

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

3851406 is a wasteful number, since it uses less digits than its factorization.

3851406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 3851406 is about 1962.4999363057. The cubic root of 3851406 is about 156.7495974593.

Adding to 3851406 its reverse (6041583), we get a palindrome (9892989).

The spelling of 3851406 in words is "three million, eight hundred fifty-one thousand, four hundred six".