1608964404 has 24 divisors (see below), whose sum is σ = 3773312928. Its totient is φ = 533598240.

The previous prime is 1608964393. The next prime is 1608964429. The reversal of 1608964404 is 4044698061.

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 7 ways as a sum of consecutive naturals, for example, 337942 + ... + 342669.

It is an arithmetic number, because the mean of its divisors is an integer number (157221372).

Almost surely, 2^1608964404 is an apocalyptic number.

It is an amenable number.

1608964404 is an abundant number, since it is smaller than the sum of its proper divisors (2164348524).

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

1608964404 is a wasteful number, since it uses less digits than its factorization.

1608964404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680815 (or 680813 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1608964404 is about 40111.8985339762. The cubic root of 1608964404 is about 1171.7873681899.

The spelling of 1608964404 in words is "one billion, six hundred eight million, nine hundred sixty-four thousand, four hundred four".