3000728 has 8 divisors (see below), whose sum is σ = 5626380. Its totient is φ = 1500360.

The previous prime is 3000709. The next prime is 3000733. The reversal of 3000728 is 8270003.

3000728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 187538 + ... + 187553.

Almost surely, 2^3000728 is an apocalyptic number.

It is an amenable number.

3000728 is a deficient number, since it is larger than the sum of its proper divisors (2625652).

3000728 is a wasteful number, since it uses less digits than its factorization.

3000728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375097 (or 375093 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 3000728 is about 1732.2609503190. The cubic root of 3000728 is about 144.2366222837.

The spelling of 3000728 in words is "three million, seven hundred twenty-eight", and thus it is an aban number.