3128384 has 28 divisors (see below), whose sum is σ = 7095744. Its totient is φ = 1340544.

The previous prime is 3128381. The next prime is 3128393. The reversal of 3128384 is 4838213.

It is a happy number.

3128384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (3128381) 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, 3044 + ... + 3939.

Almost surely, 2^3128384 is an apocalyptic number.

It is an amenable number.

3128384 is an abundant number, since it is smaller than the sum of its proper divisors (3967360).

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

3128384 is an equidigital number, since it uses as much as digits as its factorization.

3128384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002 (or 6992 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 3128384 is about 1768.7238337287. The cubic root of 3128384 is about 146.2536405454.

The spelling of 3128384 in words is "three million, one hundred twenty-eight thousand, three hundred eighty-four".