3065728 has 32 divisors (see below), whose sum is σ = 6260760. Its totient is φ = 1494528.

The previous prime is 3065723. The next prime is 3065737. The reversal of 3065728 is 8275603.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 3065728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3065723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5226 + ... + 5782.

Almost surely, 2^3065728 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 3065728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3130380).

3065728 is an abundant number, since it is smaller than the sum of its proper divisors (3195032).

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

3065728 is an equidigital number, since it uses as much as digits as its factorization.

3065728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3065728 is about 1750.9220428106. The cubic root of 3065728 is about 145.2706479001.

The spelling of 3065728 in words is "three million, sixty-five thousand, seven hundred twenty-eight".