160728444 has 72 divisors (see below), whose sum is σ = 423729488. Its totient is φ = 51321600.

The previous prime is 160728433. The next prime is 160728461. The reversal of 160728444 is 444827061.

160728444 is a `hidden beast` number, since 1 + 607 + 2 + 8 + 4 + 44 = 666.

160728444 is nontrivially palindromic in base 11.

It is a super-2 number, since 2×160728444² = 51667265421322272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 160728399 and 160728408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88344 + ... + 90144.

Almost surely, 2^160728444 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 160728444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211864744).

160728444 is an abundant number, since it is smaller than the sum of its proper divisors (263001044).

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

160728444 is a wasteful number, since it uses less digits than its factorization.

160728444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 160728444 is about 12677.8722189490. The cubic root of 160728444 is about 543.7061516762.

The spelling of 160728444 in words is "one hundred sixty million, seven hundred twenty-eight thousand, four hundred forty-four".