3856144 has 20 divisors (see below), whose sum is σ = 7911324. Its totient is φ = 1814528.

The previous prime is 3856141. The next prime is 3856147. The reversal of 3856144 is 4416583.

It is a happy number.

3856144 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 (3856141) and next prime (3856147).

It can be written as a sum of positive squares in 2 ways, for example, as 3564544 + 291600 = 1888^2 + 540^2 .

It is not an unprimeable number, because it can be changed into a prime (3856141) 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 3 ways as a sum of consecutive naturals, for example, 6817 + ... + 7360.

Almost surely, 2^3856144 is an apocalyptic number.

3856144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3856144 is an abundant number, since it is smaller than the sum of its proper divisors (4055180).

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

3856144 is a wasteful number, since it uses less digits than its factorization.

3856144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14202 (or 14196 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 3856144 is about 1963.7066990770. The cubic root of 3856144 is about 156.8138489087.

The spelling of 3856144 in words is "three million, eight hundred fifty-six thousand, one hundred forty-four".