728044 has 6 divisors (see below), whose sum is σ = 1274084. Its totient is φ = 364020.

The previous prime is 728027. The next prime is 728047. The reversal of 728044 is 440827.

It is not an unprimeable number, because it can be changed into a prime (728047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91002 + ... + 91009.

2⁷²⁸⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

728044 is a deficient number, since it is larger than the sum of its proper divisors (546040).

728044 is a wasteful number, since it uses less digits than its factorization.

728044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182015 (or 182013 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 728044 is about 853.2549443162. The cubic root of 728044 is about 89.9606412264.

The spelling of 728044 in words is "seven hundred twenty-eight thousand, forty-four".