1604603316 has 12 divisors (see below), whose sum is σ = 3744074432. Its totient is φ = 534867768.

The previous prime is 1604603311. The next prime is 1604603323. The reversal of 1604603316 is 6133064061.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604603311) 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 3 ways as a sum of consecutive naturals, for example, 66858460 + ... + 66858483.

Almost surely, 2^1604603316 is an apocalyptic number.

It is an amenable number.

1604603316 is an abundant number, since it is smaller than the sum of its proper divisors (2139471116).

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

1604603316 is a wasteful number, since it uses less digits than its factorization.

1604603316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133716950 (or 133716948 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1604603316 is about 40057.5001217001. The cubic root of 1604603316 is about 1170.7277027515.

Adding to 1604603316 its reverse (6133064061), we get a palindrome (7737667377).

The spelling of 1604603316 in words is "one billion, six hundred four million, six hundred three thousand, three hundred sixteen".