160728428 has 48 divisors (see below), whose sum is σ = 338688000. Its totient is φ = 66643920.

The previous prime is 160728401. The next prime is 160728431. The reversal of 160728428 is 824827061.

It is a junction number, because it is equal to n+sod(n) for n = 160728391 and 160728400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40643 + ... + 44421.

It is an arithmetic number, because the mean of its divisors is an integer number (7056000).

Almost surely, 2^160728428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160728428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169344000).

160728428 is an abundant number, since it is smaller than the sum of its proper divisors (177959572).

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

160728428 is a wasteful number, since it uses less digits than its factorization.

160728428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835 (or 3819 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 160728428 is about 12677.8715879283. The cubic root of 160728428 is about 543.7061336348.

The spelling of 160728428 in words is "one hundred sixty million, seven hundred twenty-eight thousand, four hundred twenty-eight".