728402 has 8 divisors (see below), whose sum is σ = 1097712. Its totient is φ = 362500.

The previous prime is 728383. The next prime is 728417. The reversal of 728402 is 204827.

728402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

728402 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, 224 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (137214).

2⁷²⁸⁴⁰² is an apocalyptic number.

728402 is a deficient number, since it is larger than the sum of its proper divisors (369310).

728402 is a wasteful number, since it uses less digits than its factorization.

728402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 728402 is about 853.4647034295. The cubic root of 728402 is about 89.9753842145.

The spelling of 728402 in words is "seven hundred twenty-eight thousand, four hundred two".