3309128 has 16 divisors (see below), whose sum is σ = 6307260. Its totient is φ = 1627200.

The previous prime is 3309121. The next prime is 3309139. The reversal of 3309128 is 8219033.

3309128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2951524 + 357604 = 1718^2 + 598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3309097 and 3309106.

It is not an unprimeable number, because it can be changed into a prime (3309121) 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, 2903 + ... + 3878.

Almost surely, 2^3309128 is an apocalyptic number.

It is an amenable number.

3309128 is a deficient number, since it is larger than the sum of its proper divisors (2998132).

3309128 is a wasteful number, since it uses less digits than its factorization.

3309128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848 (or 6844 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3309128 is about 1819.1008768070. The cubic root of 3309128 is about 149.0176998027.

The spelling of 3309128 in words is "three million, three hundred nine thousand, one hundred twenty-eight".