353728 has 14 divisors (see below), whose sum is σ = 702056. Its totient is φ = 176832.

The previous prime is 353711. The next prime is 353737. The reversal of 353728 is 827353.

It is a junction number, because it is equal to n+sod(n) for n = 353696 and 353705.

It is a congruent number.

It is an unprimeable number.

353728 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 as a sum of consecutive naturals, namely, 2700 + ... + 2827.

353728 is a Friedman number, since it can be written as ((3+8*2)^5-3)/7, using all its digits and the basic arithmetic operations.

2³⁵³⁷²⁸ is an apocalyptic number.

It is an amenable number.

353728 is a deficient number, since it is larger than the sum of its proper divisors (348328).

353728 is an equidigital number, since it uses as much as digits as its factorization.

353728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539 (or 5529 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 353728 is about 594.7503678015. The cubic root of 353728 is about 70.7223168300.

It can be divided in two parts, 353 and 728, that added together give a triangular number (1081 = T₄₆).

The spelling of 353728 in words is "three hundred fifty-three thousand, seven hundred twenty-eight".