3205128 has 32 divisors (see below), whose sum is σ = 8114400. Its totient is φ = 1054848.

The previous prime is 3205087. The next prime is 3205141. The reversal of 3205128 is 8215023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (253575).

Almost surely, 2^3205128 is an apocalyptic number.

It is an amenable number.

3205128 is an abundant number, since it is smaller than the sum of its proper divisors (4909272).

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

3205128 is a wasteful number, since it uses less digits than its factorization.

3205128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 3205128 is about 1790.2871278094. The cubic root of 3205128 is about 147.4399334088.

It can be divided in two parts, 3205 and 128, that added together give a palindrome (3333).

The spelling of 3205128 in words is "three million, two hundred five thousand, one hundred twenty-eight".