1608160728 has 16 divisors (see below), whose sum is σ = 4020401880. Its totient is φ = 536053568.

The previous prime is 1608160691. The next prime is 1608160783. The reversal of 1608160728 is 8270618061.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33503325 + ... + 33503372.

Almost surely, 2^1608160728 is an apocalyptic number.

It is an amenable number.

1608160728 is an abundant number, since it is smaller than the sum of its proper divisors (2412241152).

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

1608160728 is a wasteful number, since it uses less digits than its factorization.

1608160728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67006706 (or 67006702 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1608160728 is about 40101.8793574566. The cubic root of 1608160728 is about 1171.5922335171.

Adding to 1608160728 its reverse (8270618061), we get a palindrome (9878778789).

The spelling of 1608160728 in words is "one billion, six hundred eight million, one hundred sixty thousand, seven hundred twenty-eight".