350728 has 16 divisors (see below), whose sum is σ = 751680. Its totient is φ = 150288.

The previous prime is 350719. The next prime is 350729. The reversal of 350728 is 827053.

It is not an unprimeable number, because it can be changed into a prime (350729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3076 + ... + 3187.

It is an arithmetic number, because the mean of its divisors is an integer number (46980).

2³⁵⁰⁷²⁸ is an apocalyptic number.

It is an amenable number.

350728 is an abundant number, since it is smaller than the sum of its proper divisors (400952).

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

350728 is a wasteful number, since it uses less digits than its factorization.

350728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276 (or 6272 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 350728 is about 592.2229309981. Note that the first 3 decimals coincide. The cubic root of 350728 is about 70.5218147538.

Subtracting from 350728 its sum of digits (25), we obtain a triangular number (350703 = T₈₃₇).

The spelling of 350728 in words is "three hundred fifty thousand, seven hundred twenty-eight".