3235728 has 20 divisors (see below), whose sum is σ = 8359088. Its totient is φ = 1078560.

The previous prime is 3235723. The next prime is 3235741. The reversal of 3235728 is 8275323.

3235728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 3⁸ + 2⁷ + 3¹¹ + 5³ + 7⁷ + 2¹⁷ + 8⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 3235695 and 3235704.

It is not an unprimeable number, because it can be changed into a prime (3235723) 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, 33658 + ... + 33753.

Almost surely, 2^3235728 is an apocalyptic number.

It is an amenable number.

3235728 is an abundant number, since it is smaller than the sum of its proper divisors (5123360).

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

3235728 is a wasteful number, since it uses less digits than its factorization.

3235728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67422 (or 67416 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 3235728 is about 1798.8129419148. The cubic root of 3235728 is about 147.9076609298.

It can be divided in two parts, 32357 and 28, that added together give a triangular number (32385 = T₂₅₄).

The spelling of 3235728 in words is "three million, two hundred thirty-five thousand, seven hundred twenty-eight".