728148 has 12 divisors (see below), whose sum is σ = 1699040. Its totient is φ = 242712.

The previous prime is 728131. The next prime is 728173. The reversal of 728148 is 841827.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×728148³ = 1158191138212733376, which contains 333 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 728148.

It is an unprimeable number.

728148 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30328 + ... + 30351.

2⁷²⁸¹⁴⁸ is an apocalyptic number.

It is an amenable number.

728148 is an abundant number, since it is smaller than the sum of its proper divisors (970892).

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

728148 is a wasteful number, since it uses less digits than its factorization.

728148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60686 (or 60684 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 728148 is about 853.3158852383. The cubic root of 728148 is about 89.9649246036.

The spelling of 728148 in words is "seven hundred twenty-eight thousand, one hundred forty-eight".