1604325648 has 40 divisors (see below), whose sum is σ = 4362642400. Its totient is φ = 506628864.

The previous prime is 1604325641. The next prime is 1604325677. The reversal of 1604325648 is 8465234061.

It is not an unprimeable number, because it can be changed into a prime (1604325641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878653 + ... + 880476.

It is an arithmetic number, because the mean of its divisors is an integer number (109066060).

Almost surely, 2^1604325648 is an apocalyptic number.

It is an amenable number.

1604325648 is an abundant number, since it is smaller than the sum of its proper divisors (2758316752).

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

1604325648 is a wasteful number, since it uses less digits than its factorization.

1604325648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759159 (or 1759153 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1604325648 is about 40054.0341039451. The cubic root of 1604325648 is about 1170.6601694721.

The spelling of 1604325648 in words is "one billion, six hundred four million, three hundred twenty-five thousand, six hundred forty-eight".