1604683608 has 192 divisors, whose sum is σ = 4698624000. Its totient is φ = 455051520.

The previous prime is 1604683607. The next prime is 1604683609. The reversal of 1604683608 is 8063864061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1604683607) and next prime (1604683609).

It is a self number, because there is not a number n which added to its sum of digits gives 1604683608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604683607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7007238 + ... + 7007466.

It is an arithmetic number, because the mean of its divisors is an integer number (24472000).

Almost surely, 2^1604683608 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 1604683608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2349312000).

1604683608 is an abundant number, since it is smaller than the sum of its proper divisors (3093940392).

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

1604683608 is a wasteful number, since it uses less digits than its factorization.

1604683608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 391 counting only the distinct ones).

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

The square root of 1604683608 is about 40058.5023184841. The cubic root of 1604683608 is about 1170.7472295924.

The spelling of 1604683608 in words is "one billion, six hundred four million, six hundred eighty-three thousand, six hundred eight".