3259728 has 30 divisors (see below), whose sum is σ = 9123114. Its totient is φ = 1086528.

The previous prime is 3259727. The next prime is 3259771. The reversal of 3259728 is 8279523.

It is a happy number.

3259728 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 only one way, i.e., 2471184 + 788544 = 1572^2 + 888^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3259692 and 3259701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3259723) 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 5 ways as a sum of consecutive naturals, for example, 11175 + ... + 11462.

Almost surely, 2^3259728 is an apocalyptic number.

It is an amenable number.

3259728 is an abundant number, since it is smaller than the sum of its proper divisors (5863386).

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

3259728 is a wasteful number, since it uses less digits than its factorization.

3259728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22651 (or 22642 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3259728 is about 1805.4716835221. The cubic root of 3259728 is about 148.2724467811.

The spelling of 3259728 in words is "three million, two hundred fifty-nine thousand, seven hundred twenty-eight".