119728 has 20 divisors (see below), whose sum is σ = 265360. Its totient is φ = 51264.

The previous prime is 119723. The next prime is 119737. The reversal of 119728 is 827911.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 119696 and 119705.

It is not an unprimeable number, because it can be changed into a prime (119723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423 + ... + 646.

It is an arithmetic number, because the mean of its divisors is an integer number (13268).

2¹¹⁹⁷²⁸ is an apocalyptic number.

It is an amenable number.

119728 is an abundant number, since it is smaller than the sum of its proper divisors (145632).

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

119728 is a wasteful number, since it uses less digits than its factorization.

119728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1078 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 119728 is about 346.0173406059. The cubic root of 119728 is about 49.2869460890.

It can be divided in two parts, 1197 and 28, that added together give a triangular number (1225 = T₄₉).

The spelling of 119728 in words is "one hundred nineteen thousand, seven hundred twenty-eight".