3856128 has 36 divisors (see below), whose sum is σ = 10264968. Its totient is φ = 1285120.

The previous prime is 3856123. The next prime is 3856129. The reversal of 3856128 is 8216583.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1743 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (285138).

Almost surely, 2^3856128 is an apocalyptic number.

It is an amenable number.

3856128 is an abundant number, since it is smaller than the sum of its proper divisors (6408840).

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

3856128 is an equidigital number, since it uses as much as digits as its factorization.

3856128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040 (or 5026 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 3856128 is about 1963.7026251447. The cubic root of 3856128 is about 156.8136320232.

The spelling of 3856128 in words is "three million, eight hundred fifty-six thousand, one hundred twenty-eight".