1608873992 has 64 divisors (see below), whose sum is σ = 3353011200. Its totient is φ = 717624640.

The previous prime is 1608873971. The next prime is 1608874019. The reversal of 1608873992 is 2993788061.

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, 1219109 + ... + 1220427.

It is an arithmetic number, because the mean of its divisors is an integer number (52390800).

Almost surely, 2^1608873992 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 1608873992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676505600).

1608873992 is an abundant number, since it is smaller than the sum of its proper divisors (1744137208).

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

1608873992 is a wasteful number, since it uses less digits than its factorization.

1608873992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1608873992 is about 40110.7715208770. The cubic root of 1608873992 is about 1171.7654191599.

The spelling of 1608873992 in words is "one billion, six hundred eight million, eight hundred seventy-three thousand, nine hundred ninety-two".