3232728 has 48 divisors (see below), whose sum is σ = 8915400. Its totient is φ = 1057920.

The previous prime is 3232699. The next prime is 3232729. The reversal of 3232728 is 8272323.

3232728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3232729) 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 11 ways as a sum of consecutive naturals, for example, 3868 + ... + 4628.

Almost surely, 2^3232728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3232728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4457700).

3232728 is an abundant number, since it is smaller than the sum of its proper divisors (5682672).

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

3232728 is a wasteful number, since it uses less digits than its factorization.

3232728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 825 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 3232728 is about 1797.9788652818. The cubic root of 3232728 is about 147.8619360125.

The spelling of 3232728 in words is "three million, two hundred thirty-two thousand, seven hundred twenty-eight".