3001728 has 32 divisors (see below), whose sum is σ = 7974360. Its totient is φ = 1000448.

The previous prime is 3001727. The next prime is 3001759. The reversal of 3001728 is 8271003.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001721) 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, 3525 + ... + 4292.

Almost surely, 2^3001728 is an apocalyptic number.

It is an amenable number.

3001728 is an abundant number, since it is smaller than the sum of its proper divisors (4972632).

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

3001728 is an equidigital number, since it uses as much as digits as its factorization.

3001728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7834 (or 7822 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 3001728 is about 1732.5495663905. The cubic root of 3001728 is about 144.2526429075.

It can be divided in two parts, 300 and 1728, that multiplied together give a square (518400 = 720²).

The spelling of 3001728 in words is "three million, one thousand, seven hundred twenty-eight".